@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix matsci: <https://w3id.org/matsci-sam/metadata#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://w3id.org/matsci-sam/vocabulary> a skos:ConceptScheme ;
  dcterms:title "MatSci-SAM vocabulary"@en ;
  dcterms:description "Community definitions of materials science terminology, curated with human-in-the-loop AI by the Metadata Research Center, Drexel University."@en ;
  dcterms:publisher "Metadata Research Center, Drexel University" .

<https://w3id.org/matsci-sam/vocabulary/id4> a skos:ConceptScheme ;
  dcterms:title "ID4"@en ;
  dcterms:publisher "Metadata Research Center, Drexel University" .

<https://w3id.org/matsci-sam/vocabulary/mrc> a skos:ConceptScheme ;
  dcterms:title "Metadata Research Center"@en ;
  dcterms:publisher "Metadata Research Center, Drexel University" .

<https://w3id.org/matsci-sam/vocabulary/id4/2d_material> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "2d material"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-10-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/2d_material> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/1/revisions/1> ;
  dcterms:created "2025-10-20T18:48:45.596Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material that is 1-20 atomic layers thick."@en ;
  skos:example "graphene"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T18:48:45.596Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/2d_material> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2/revisions/1> ;
  dcterms:created "2025-10-20T18:48:54.265Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A two-dimensional layer of atoms, typically a single element or a few elements, forming a sheet-like structure."@en ;
  skos:example "Graphene is a 2D material consisting of a single layer of carbon atoms arranged in a hexagonal lattice."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/2d_material/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-10-20T18:48:54.265Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/activation_energy> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "activation energy"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/3/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Boudy Hakim" ;
  dcterms:created "2025-09-17"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1/revisions/1> ;
  dcterms:created "2025-09-17T07:12:20.877Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The energy needed to pass over an energy barrier of some sort, often for atomic movement or a chemical reaction."@en ;
  skos:example "A lower activation energy for lithium migration means lithium can travel more easily, making for a better battery electrolyte. "@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-09-17T07:12:20.877Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/2/revisions/1> ;
  dcterms:created "2025-09-17T07:12:28.992Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The minimum energy required for a chemical reaction to proceed from reactants to products."@en ;
  skos:example "Heating a reacting mixture can increase the fraction of molecules able to cross an activation-energy barrier. Heating does not itself lower the barrier for the same reaction pathway."@en ;
  skos:example "Increasing the temperature of a combustion reaction provides reactants with more kinetic energy, decreasing the activation energy and promoting ignition."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-09-17T07:12:28.992Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/3/revisions/1> ;
  dcterms:created "2025-10-20T20:34:24.841Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "It is the the minimum amount of energy required for a particular reaction to proceed"@en ;
  skos:example "Energy of transition states, organic synthesis, kinetics"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy/definitions/3> ;
  dcterms:creator "Boudy Hakim" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:34:24.841Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/alloy> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "alloy"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-07-28"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/alloy> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/1/revisions/1> ;
  dcterms:created "2025-07-28T21:43:44.114Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A crystalline material where there is atomic disorder on at least one Wyckoff site."@en ;
  skos:example "An alloy of SnTe and GeTe has lower thermal conductivity than either parent compound."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-07-28T21:43:44.114Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/alloy> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2/revisions/1> ;
  dcterms:created "2025-07-28T21:45:38.243Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material exhibiting a specific, predictable arrangement of atoms within a crystal lattice."@en ;
  skos:example "Quartz is a solid solution exhibiting a specific, predictable arrangement of atoms within a crystal lattice."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/alloy/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-07-28T21:45:38.243Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/annealing> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "annealing"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:contributor "gemma4:26b" ;
  dcterms:created "2026-07-21"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/annealing> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/1/revisions/1> ;
  dcterms:created "2026-07-21T14:39:27.766Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Heating a metal and letting it cool slowly so it becomes softer and easier to work with."@en ;
  skos:example "Copper pipe is annealed so it can be bent without cracking."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-21T14:39:27.766Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/annealing> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2/revisions/1> ;
  dcterms:created "2026-07-21T14:39:42.512Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A heat treatment process in which a material is heated to a specific temperature, held at that temperature for a designated period, and then cooled at a controlled rate (typically slowly) to induce structural changes such as grain growth, reduction of dislocation density, relief of internal residual stresses, or alteration of phase composition."@en ;
  skos:example "The steel component underwent annealing to improve its ductility and reduce the hardness induced by the previous cold-working steps."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/annealing/definitions/2> ;
  dcterms:creator "gemma4:26b" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-21T14:39:42.512Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "band gap"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/3/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/4/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2025-09-04"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1/revisions/1> ;
  dcterms:created "2025-09-04T15:37:36.091Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The energy it takes to excite an electron from the top of the valence band to the bottom of the conduction band. Among other things, this dictates what wavelengths of light are absorbed by a material."@en ;
  skos:example "The band gap of Si is 1.1 eV, so it starts absorbing in the infrared spectrum but also absorbs higher-energy visible and UV light."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-09-04T15:37:36.091Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/2/revisions/1> ;
  dcterms:created "2025-09-04T15:37:45.217Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The energy difference between the valence band and the conduction band in a semiconductor material."@en ;
  skos:example "Gallium Arsenide (GaAs) has a relatively small band gap of 1.4 eV, making it suitable for high-frequency electronic devices."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-04T15:37:45.217Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/3/revisions/1> ;
  dcterms:created "2026-09-03T19:24:15.751Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The energy difference between the top of the valence band and the bottom of the conduction band in a semiconductor or insulator, determining the material's electrical conductivity."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/3> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-09-03T19:24:15.751Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/4> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap> ;
  matsci:definitionNumber "4"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/4/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/4/revisions/1> ;
  dcterms:created "2026-09-08T19:26:27.901Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/4/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The energy difference between the valence band and the conduction band in a material, representing the minimum energy required to excite an electron to a conductive state."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/4> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/band_gap/definitions/4> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-09-08T19:26:27.901Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/casting> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "casting"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:contributor "gemma4:26b" ;
  dcterms:created "2026-07-14"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/casting> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/1/revisions/1> ;
  dcterms:created "2026-07-14T20:17:53.305Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material’s capacity to transmit heat or electrical current, influenced by bonding, electron mobility, and structure."@en ;
  skos:example "Metals typically excel in electrical conduction (free electrons), ceramics insulate due to electron localisation. Polymers vary widely depending on doping or composition."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-14T20:17:53.305Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/casting> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2/revisions/1> ;
  dcterms:created "2026-07-14T20:18:21.898Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The process of manufacturing by pouring a liquid material (such as molten metal, plastic, or ceramic slurry) into a mold cavity, where it solidifies into the desired shape."@en ;
  skos:example "Sand casting is widely used in automotive manufacturing to create complex engine blocks by pouring molten iron into a pre-formed sand mold."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/casting/definitions/2> ;
  dcterms:creator "gemma4:26b" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-14T20:18:21.898Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/ceramics> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary> ;
  skos:prefLabel "ceramics"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:contributor "gemma4:26b" ;
  dcterms:created "2026-08-04"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/ceramics> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/1/revisions/1> ;
  dcterms:created "2026-08-04T14:37:51.973Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Inorganic, non-metallic solid composed of metallic or metalloid atoms chemically bonded to non-metallic atoms"@en ;
  skos:example "Ceramics exhibit high thermal stability and hardness due to their strong ionic and covalent bonding, making them ideal candidates for aerospace engine components operating in extreme environments."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-08-04T14:37:51.973Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/ceramics> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2/revisions/1> ;
  dcterms:created "2026-08-04T14:38:21.712Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Inorganic, non-metallic solids composed of metallic and non-metallic elements held together primarily by ionic or covalent bonds; typically characterized by high melting points, high compressive strength, hardness, chemical inertness, and electrical/thermal insulation properties."@en ;
  skos:example "The addition of zirconia to the alumina matrix creates a toughened ceramic capable of resisting crack propagation through phase transformation toughening."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/ceramics/definitions/2> ;
  dcterms:creator "gemma4:26b" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-08-04T14:38:21.712Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/chemical> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "chemical"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2/revisions/1> ;
  dcterms:contributor "Scott McClellan" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2026-03-19"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/chemical> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/1/revisions/1> ;
  dcterms:created "2026-03-19T19:49:55.380Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Substance which is the result of a reaction between substances"@en ;
  skos:example "hydrochloric acid"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/1> ;
  dcterms:creator "Scott McClellan" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-03-19T19:49:55.380Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/chemical> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2/revisions/1> ;
  dcterms:created "2026-03-19T19:50:01.082Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A substance that is composed of elements or compounds, typically with distinct chemical properties."@en ;
  skos:example "Hydrochloric acid"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/chemical/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-03-19T19:50:01.082Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "coordination environment"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Jane Greenberg" ;
  dcterms:created "2025-09-17"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/1/revisions/1> ;
  dcterms:created "2025-09-17T07:06:29.552Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "What at atom \"sees\" in its vicinity, or how its nearby atomic neighbors are arranged. Often referred to by the shape created by the set of nearest neighbors."@en ;
  skos:example "Atoms in the rock salt structure have an octahedral coordination environment"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-17T07:06:29.552Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/2/revisions/1> ;
  dcterms:created "2025-09-17T07:06:37.680Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The arrangement of atoms surrounding a central atom in a crystalline structure."@en ;
  skos:example "In rutile TiO2, each titanium ion is surrounded by six oxygen ions in a distorted octahedral coordination environment."@en ;
  skos:example "The titanium dioxide (TiO2) crystal exhibits a distorted tetrahedral coordination environment around the titanium ion."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-17T07:06:37.680Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3/revisions/1> ;
  dcterms:created "2026-09-08T16:14:43.373Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The spatial arrangement, number, and types of neighboring atoms or ligands that immediately surround a central atom within a crystal lattice or molecular complex."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment/definitions/3> ;
  dcterms:creator "Jane Greenberg" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2026-09-08T16:14:43.373Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/creep> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "creep"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-07-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/creep> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/1/revisions/1> ;
  dcterms:created "2025-07-30T00:54:46.415Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "When a polymer yields despite stress remaining the same"@en ;
  skos:example "Creep caused the silly putty to droop slowly"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-07-30T00:54:46.415Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/creep> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T20:52:16.346Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The tendency of a material to undergo permanent deformation under sustained stress, often at elevated temperatures."@en ;
  skos:example "The bridge support experienced creep under the constant weight of traffic."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/creep/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-08-06T20:52:16.346Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/data> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "data"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/3/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Kio P" ;
  dcterms:created "2025-07-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/data> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1/revisions/1> ;
  dcterms:created "2025-07-30T01:00:16.522Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Information. At this point, acceptable to use as a singular noun."@en ;
  skos:example "The data is inconclusive, as it does not show a clear trend."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-07-30T01:00:16.522Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/data> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T20:51:55.650Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Yield Strength: The maximum stress a material can withstand before permanent deformation begins."@en ;
  skos:example "The aluminum alloy’s yield strength is 70 ksi, allowing it to be used in applications requiring structural integrity."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-06T20:51:55.650Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/data> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/3/revisions/1> ;
  dcterms:created "2025-10-20T20:43:57.813Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A measurement or otherwise unprocessed digitization with enough context to know what the data refers to."@en ;
  skos:example "I have quantitative data which all come from people's heights, and qualitative data of recordings of people reflecting on how they feel about their height"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/data/definitions/3> ;
  dcterms:creator "Kio P" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:43:57.813Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "density functional theory (dft)"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/3/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2025-09-04"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/1/revisions/1> ;
  dcterms:created "2025-09-04T15:29:45.626Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A computational method used to simulate materials (or molecules) on an atomic scale. A charge density is guessed, then updated until it is no longer changing. The results include energy and per-atom forces and can be post-processed to calculate elastic properties, band structures, and more."@en ;
  skos:example "DFT was used to calculate the electronic band structure of silicon."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-04T15:29:45.626Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2/revisions/1> ;
  dcterms:created "2025-09-04T15:29:55.362Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Density functional theory (DFT) is a computational method that utilizes electron charge densities to approximate the ground-state electronic structure and properties of materials, bypassing the explicit solution of the many-body Schrödinger equation."@en ;
  skos:example "DFT was used to predict the magnetic properties of nickel, based on the arrangement and behavior of its electron density."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-09-04T15:29:55.362Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/3/revisions/1> ;
  dcterms:created "2026-09-08T19:09:22.469Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Density functional theory (DFT) is a computational modeling method that uses electron density as the fundamental variable to approximate the ground-state electronic structure of many-body systems, replacing the complex many-electron wavefunction with a functional of the density to simplify the solution of the Schrödinger equation."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft/definitions/3> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-09-08T19:09:22.469Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dielectric> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "dielectric"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2/revisions/1> ;
  dcterms:contributor "João Mazo" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-07-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/dielectric> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/1/revisions/1> ;
  dcterms:created "2025-07-30T01:12:37.208Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A subclass of electric insulators that also have a significant dielectric constant, i.e. charge screening capability. Also used to simply mean: electrical insulator."@en ;
  skos:example "Glass is a dielectric material"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/1> ;
  dcterms:creator "João Mazo" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-07-30T01:12:37.208Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/dielectric> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T19:10:16.917Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material that reduces the electric field strength between two conductors by aligning its molecular dipoles in response to an external electric field."@en ;
  skos:example "Ceramic capacitors utilize barium titanate, a dielectric material, to store electrical charge."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/dielectric/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-06T19:10:16.917Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dynamical> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "dynamical"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/2/revisions/1> ;
  dcterms:contributor "Shelby Galinat" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-07-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/dynamical> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1/revisions/1> ;
  dcterms:created "2025-07-30T00:58:10.178Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Something that is adaptive or moves. One might argue that the word you’re looking for is “dynamic”…"@en ;
  skos:example "Institute for data driven dynamical design"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/1> ;
  dcterms:creator "Shelby Galinat" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "stable" ;
  dcterms:created "2025-07-30T00:58:10.178Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/dynamical> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T20:52:00.553Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Relating to or governed by motion or change over time."@en ;
  skos:example "The dynamical behavior of a polymer chain under stress is studied using rheology."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/dynamical/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-06T20:52:00.553Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "elastic properties"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/3/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/4/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Jane Greenberg" ;
  dcterms:created "2025-09-04"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1/revisions/1> ;
  dcterms:created "2025-09-04T15:32:43.013Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "How stiff a material is, i.e. how a material behaves when forces or stresses are applied to it."@en ;
  skos:example "Stiffness, Young's modulus, shear modulus"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-04T15:32:43.013Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/2/revisions/1> ;
  dcterms:created "2025-09-04T15:32:50.658Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Tensile strength is the maximum stress a material can withstand while being stretched or pulled before it begins to deform permanently."@en ;
  skos:example "Steel beams in a bridge are designed to withstand the tensile forces generated by gravity and traffic."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-04T15:32:50.658Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/3/revisions/1> ;
  dcterms:created "2026-09-08T16:19:10.406Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Describes how a material stretches, compresses, or twists under an external force and returns to its original shape once the force is removed."@en ;
  skos:example "A steel bridge beam under the weight of a heavy truck."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/3> ;
  dcterms:creator "Jane Greenberg" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-09-08T16:19:10.406Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/4> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties> ;
  matsci:definitionNumber "4"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/4/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/4/revisions/1> ;
  dcterms:created "2026-09-08T19:30:19.162Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/4/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The ability of a material to deform under external stress—such as stretching, compressing, or twisting—and return to its original shape once the force is removed, characterized by specific-valued properties such as Young's modulus, shear modulus, and Poisson's ratio."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/4> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties/definitions/4> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-09-08T19:30:19.162Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary> ;
  skos:prefLabel "exchange-correlation functional"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2026-07-26"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1/revisions/1> ;
  dcterms:created "2026-07-26T11:19:53.956Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The part of a density functional theory calculation that approximates the exchange and correlation contributions to the electronic energy, which are not known exactly and must be modelled. The choice of functional is the main source of systematic error in a DFT result, so it should always be reported alongside the values it produced."@en ;
  skos:example "The authors recomputed the band gaps with a hybrid exchange-correlation functional because the semi-local functional underestimated them."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/exchange-correlation_functional/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-26T11:19:53.956Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/fatigue> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "fatigue"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2/revisions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/3/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:contributor "gemma4:26b" ;
  dcterms:created "2026-07-21"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/1/revisions/1> ;
  dcterms:created "2026-07-21T14:25:39.225Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "When metal breaks after being bent or loaded over and over, even if the load is small."@en ;
  skos:example "The bracket failed from fatigue after thousands of flight cycles."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-21T14:25:39.225Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2/revisions/2> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2/revisions/2> ;
  dcterms:created "2026-07-21T14:25:40.709Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2/revisions/2> a matsci:DefinitionRevision ;
  rdf:value "The process of progressive structural damage occurring in a material subjected to cyclic or fluctuating stresses, where failure typically initiates at stress levels significantly below the material's yield strength; the mechanism consists of three distinct stages: crack initiation (nucleation), crack propagation (growth through the microstructure), and final fracture (sudden catastrophic failure once the remaining cross-section can no longer support the load)."@en ;
  skos:example "The turbine blade developed a microscopic surface fissure due to fatigue, which eventually propagated through the airfoil until the residual thickness reached a critical limit."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2> ;
  dcterms:creator "gemma4:26b" ;
  matsci:version "2"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-21T10:26:04.060Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/3/revisions/1> ;
  dcterms:created "2026-07-21T14:26:24.695Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Fatigue is a progressive structural damage process that occurs when a material is subjected to cyclic loading. This phenomenon leads to failure at stress levels significantly lower than the material's ultimate tensile strength or yield strength. The fatigue process typically proceeds through three distinct stages: crack initiation, where microstructural defects or surface irregularities develop into cracks; crack propagation, where the crack grows incrementally with each cycle; and final fracture, where the remaining cross-sectional area can no longer support the applied load, leading to sudden failure."@en ;
  skos:example "The bracket failed from fatigue after experiencing thousands of flight cycles, as cyclic aerodynamic loads drove a crack from initiation through propagation until reaching the critical fracture toughness."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/3> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-21T14:26:24.695Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "ferroelectric"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/2/revisions/1> ;
  dcterms:contributor "Victoria Bradford" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-07-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1/revisions/1> ;
  dcterms:created "2025-07-30T00:56:53.229Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A ceramic material with a switchable spontaneous polarization via positively and negatively biased electric fields, due to weird behaviors of charge density in noncentrosymmetric dielectric crystals"@en ;
  skos:example "Hafnia, PZT, AlScN"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/1> ;
  dcterms:creator "Victoria Bradford" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-07-30T00:56:53.229Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T20:52:09.798Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material that exhibits spontaneous electric polarization that can be reversed by an external electric field."@en ;
  skos:example "Lead Zirconate Titanate (PZT) is a widely used ferroelectric ceramic in sensors and actuators."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-06T20:52:09.798Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/formation_energy> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary> ;
  skos:prefLabel "formation energy"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2026-07-26"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/formation_energy> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/1/revisions/1> ;
  dcterms:created "2026-07-26T11:16:15.877Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The energy released or required when a compound forms from its constituent elements, used to judge whether a predicted structure is thermodynamically favorable."@en ;
  skos:example "Screening pipelines rank candidate cathode compositions by formation energy before any material is synthesized."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-26T11:16:15.877Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/formation_energy> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2/revisions/1> ;
  dcterms:created "2026-07-26T11:18:59.017Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The difference in total energy between a compound and its constituent elements in their respective standard states, typically expressed in electronvolts (eV) per atom or per formula unit. A negative formation energy indicates thermodynamic stability relative to the precursors. Because values may be reported using different normalization bases, datasets are not directly comparable unless the energy basis is explicitly stated."@en ;
  skos:example "To ensure consistency across high-throughput datasets, researchers must verify whether predicted cathode formation energies are reported in eV/atom or eV/formula unit before comparing phase stability."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/formation_energy/definitions/2> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-26T11:18:59.017Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "fuel cell"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/3/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2025-07-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1/revisions/1> ;
  dcterms:created "2025-07-30T00:57:31.311Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A device that converts chemical energy into electrical energy"@en ;
  skos:example "Fuel cell vehicles use nitrogen to power electric motors"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-07-30T00:57:31.311Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T20:52:04.364Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material exhibiting uniform properties in all directions and throughout its volume."@en ;
  skos:example "Quartz is a crystalline solid, demonstrating consistent hardness and refractive index across its structure."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-06T20:52:04.364Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/3/revisions/1> ;
  dcterms:created "2026-07-20T14:15:26.901Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "a cell that has fule in it"@en ;
  skos:example "I like the fuel cell"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell/definitions/3> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T14:15:26.901Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "grain"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2/revisions/1> ;
  dcterms:contributor "Scott McClellan" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2026-01-22"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/1/revisions/1> ;
  dcterms:created "2026-01-22T18:14:03.468Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Particle "@en ;
  skos:example "Salt"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/1> ;
  dcterms:creator "Scott McClellan" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-01-22T18:14:03.468Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2/revisions/1> ;
  dcterms:created "2026-02-04T20:25:44.226Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A small, hard piece of a substance, typically a solid, that is used in food or other applications."@en ;
  skos:example "Salt"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-02-04T20:25:44.226Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "grain boundary"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:contributor "Jane Greenberg" ;
  dcterms:created "2026-07-24"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/1/revisions/1> ;
  dcterms:created "2026-07-24T03:04:42.100Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The interface between two adjacent crystalline grains whose crystal lattices have different orientations."@en ;
  skos:example "Reducing the average grain size increased the alloy’s yield strength because the additional grain boundaries impeded dislocation motion."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-24T03:04:42.100Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/2/revisions/1> ;
  dcterms:created "2026-07-24T03:05:28.918Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A planar defect representing the interface between two adjacent crystals (grains) with differing crystallographic orientations."@en ;
  skos:example "Reducing the average grain size increases the yield strength of an alloy through the Hall-Petch effect, as the increased density of grain boundaries acts as a barrier to dislocation motion."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/2> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-24T03:05:28.918Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3/revisions/1> ;
  dcterms:created "2026-07-30T13:59:15.503Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The interface between two adjacent crystals (grains) characterized by a discontinuity in crystallographic orientation."@en ;
  skos:example "Reducing the average grain size increased the alloy’s yield strength because the additional grain boundaries impeded dislocation motion."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/grain_boundary/definitions/3> ;
  dcterms:creator "Jane Greenberg" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-30T13:59:15.503Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "hierarchical structure"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-10-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/1/revisions/1> ;
  dcterms:created "2025-10-20T18:52:36.193Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material structure with structural elements on different length scales."@en ;
  skos:example "A matrix containing small pores which itself has very large pores."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T18:52:36.193Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2/revisions/1> ;
  dcterms:created "2025-10-20T18:52:44.015Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The arrangement of materials into levels with distinct properties and sizes."@en ;
  skos:example "A composite material like fiberglass consists of fibers within a polymer matrix, with the fibers having significantly different strength properties than the matrix."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/hierarchical_structure/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T18:52:44.015Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "high-entropy alloy"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-10-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/1/revisions/1> ;
  dcterms:created "2025-10-20T18:47:30.149Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A disordered metal with five or more elements and equiatomic composition. It is stabilized by entropy, at least at higher temperatures."@en ;
  skos:example "CrMnFeCoNi"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T18:47:30.149Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2/revisions/1> ;
  dcterms:created "2025-10-20T18:47:38.235Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A solid solution alloy exhibiting a significant variation in elemental composition, frequently resulting in a disordered microstructure and enhanced mechanical performance."@en ;
  skos:example "CoCrFeNiMo"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-10-20T18:47:38.235Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/k-point_mesh> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary> ;
  skos:prefLabel "k-point mesh"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1/revisions/2> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2026-07-26"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/k-point_mesh> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1/revisions/2> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1/revisions/2> ;
  dcterms:created "2026-07-26T11:23:00.457Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1/revisions/2> a matsci:DefinitionRevision ;
  rdf:value "The grid of points used to sample the Brillouin zone when integrating over reciprocal space in a periodic electronic structure calculation. The mesh density must be converged for the specific property being computed, and metals generally require denser sampling than insulators because of the discontinuity at the Fermi surface."@en ;
  skos:example "The metal required a denser k-point mesh than the insulator to converge the total energy to within 1 meV per atom."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/k-point_mesh/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "2"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-26T11:24:02.924Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/martensite> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "martensite"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2026-07-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/martensite> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/1/revisions/1> ;
  dcterms:created "2026-07-20T12:11:33.644Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A very hard structure that forms in steel when it is cooled down very quickly from a high temperature."@en ;
  skos:example "Quenching a sword blade in water produces martensite, which makes the edge hard but brittle."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T12:11:33.644Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/martensite> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2/revisions/1> ;
  dcterms:created "2026-07-20T12:13:51.049Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A metastable, body-centered tetragonal (BCT) phase formed via a diffusionless, displacive shear transformation of austenite during rapid cooling; while most commonly associated with steels, martensitic transformations also occur in various other alloy systems."@en ;
  skos:example "Quenching a high-carbon steel blade in water triggers a diffusionless transformation from austenite to martensite, creating the high hardness required for an edge despite the resulting increase in brittleness."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/martensite/definitions/2> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T12:13:51.049Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/material> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "material"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/3/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Fernando Uribe Romo" ;
  dcterms:created "2025-09-04"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/material> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1/revisions/1> ;
  dcterms:created "2025-09-04T15:23:38.576Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A substance, typically solid, with a defined chemical composition (or composed of regions with defined compositions). Often, materials have a crystal structure with defined, repeating symmetry, but there can be defects or even a complete lack of long-range order."@en ;
  skos:example "Steel, silicon, soda-lime glass, wood, polyethelyene"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-04T15:23:38.576Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/material> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/2/revisions/1> ;
  dcterms:created "2025-09-04T15:23:47.043Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A substance with definable chemical composition and physical properties."@en ;
  skos:example "Titanium is a material known for its high strength-to-weight ratio."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-04T15:23:47.043Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/material> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/3/revisions/1> ;
  dcterms:created "2025-09-05T14:55:59.087Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A chemical substance with properties that enable application"@en ;
  skos:example "diamond is a hard material used as abrassive and cutter"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/material/definitions/3> ;
  dcterms:creator "Fernando Uribe Romo" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-05T14:55:59.087Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/melt> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "melt"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/2/revisions/1> ;
  dcterms:contributor "Scott McClellan" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-07-25"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/melt> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1/revisions/1> ;
  dcterms:created "2025-07-25T18:07:43.894Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Phase change from solid to liquid"@en ;
  skos:example "ice becoming water"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/1> ;
  dcterms:creator "Scott McClellan" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-07-25T18:07:43.894Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/melt> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T20:52:30.988Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The transition of a substance from a solid to a liquid state due to heat."@en ;
  skos:example "Gold is melted during jewelry making to be cast into new shapes."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/melt/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-06T20:52:30.988Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "metal-organic framework"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1/revisions/3> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/3/revisions/1> ;
  dcterms:contributor "Fernando Fajardo-Rojas" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Alyssa Bordner" ;
  dcterms:created "2025-10-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1/revisions/3> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1/revisions/3> ;
  dcterms:created "2025-10-20T20:41:51.019Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1/revisions/3> a matsci:DefinitionRevision ;
  rdf:value "A class of porous crystalline materials formed by the interconnection of organic linkers and metallic nodes arranged in period spatial arrangements. "@en ;
  skos:example "MOF-303 is a porous material used to harvest water from the atmosphere."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/1> ;
  dcterms:creator "Fernando Fajardo-Rojas" ;
  matsci:version "3"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:42:27.109Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/2/revisions/1> ;
  dcterms:created "2025-10-20T20:41:59.990Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A crystalline solid composed of metal ions or clusters coordinated to organic ligands, forming a repeating porous structure."@en ;
  skos:example "Titanium dioxide (TiO2) is a semiconductor material used in solar cells."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:41:59.990Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/3/revisions/1> ;
  dcterms:created "2026-05-14T15:32:07.440Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A crystalline material that has permanent porosity and a repeating unit cell"@en ;
  skos:example "MOF-5"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/metal-organic_framework/definitions/3> ;
  dcterms:creator "Alyssa Bordner" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-05-14T15:32:07.440Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/motif> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "motif"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-09-17"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/motif> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/1/revisions/1> ;
  dcterms:created "2025-09-17T07:10:32.640Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "An arrangement of atoms in a material, typically one that is visually recognizable and therefore does not contain more than 5-20 atoms."@en ;
  skos:example "In an alloy of Cr, Co, and Ni, Ni prefers to be surrounded by Cr and other Ni, so that motif shows up frequently."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-17T07:10:32.640Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/motif> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2/revisions/1> ;
  dcterms:created "2025-09-17T07:10:40.608Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A repeating structural arrangement of atoms or ions in a crystalline solid."@en ;
  skos:example "In olivine ((Mg,Fe)SiO3), the SiO4 tetrahedral units are the repeating motif."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/motif/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-17T07:10:40.608Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "nanomaterial"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-10-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/1/revisions/1> ;
  dcterms:created "2025-10-20T18:50:07.354Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material that has microstructural elements that are 1-100 nanometers in size."@en ;
  skos:example "quantum dots, nanopillars"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T18:50:07.354Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2/revisions/1> ;
  dcterms:created "2025-10-20T18:50:15.080Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A material with at least one dimension between 1 and 100 nanometers."@en ;
  skos:example "Carbon nanotubes are nanomaterials due to their incredibly small diameter."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/nanomaterial/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T18:50:15.080Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/novel> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "novel"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/3/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "ARIA LA" ;
  dcterms:created "2025-07-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/novel> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1/revisions/1> ;
  dcterms:created "2025-07-30T00:56:25.765Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "New"@en ;
  skos:example "Papers try to be novel in their contributions to the literature"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "stable" ;
  dcterms:created "2025-07-30T00:56:25.765Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/novel> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/2/revisions/1> ;
  dcterms:created "2025-08-06T20:52:13.031Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The ability of a material to withstand a sudden impact or shock without fracturing."@en ;
  skos:example "The high toughness of steel makes it suitable for use in bulletproof vests."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-06T20:52:13.031Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/novel> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/3/revisions/1> ;
  dcterms:created "2025-10-20T20:38:55.696Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "It means original, or modern"@en ;
  skos:example "The computer produced a completely novel proof of a well-known theorem"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/novel/definitions/3> ;
  dcterms:creator "ARIA LA" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:38:55.696Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "phase diagram"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/3/revisions/1> ;
  dcterms:contributor "Mingwei Li" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Danielle Veigel" ;
  dcterms:created "2025-08-30"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1/revisions/1> ;
  dcterms:created "2025-08-30T03:50:23.997Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A graphical representation showing the stable phases of a material as a function of variables such as temperature, pressure, or composition."@en ;
  skos:example "The phase diagram for water shows how its state changes from solid, to liquid, and to gas as temperature and pressure are varied"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/1> ;
  dcterms:creator "Mingwei Li" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-08-30T03:50:23.997Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/2/revisions/1> ;
  dcterms:created "2025-08-30T03:50:31.787Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A measure of a material's resistance to elastic deformation under tensile or compressive stress."@en ;
  skos:example "The Young's modulus of rubber is low, signifying its high elasticity and tendency to return to its original shape after being stretched."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-08-30T03:50:31.787Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/3/revisions/1> ;
  dcterms:created "2026-09-10T16:49:56.141Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A graphical representation showing the stable phases of a material or material system as a function of variables such as temperature, pressure, or composition."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram/definitions/3> ;
  dcterms:creator "Danielle Veigel" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-09-10T16:49:56.141Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/potential> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "potential"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/2/revisions/1> ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-09-17"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/potential> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1/revisions/1> ;
  dcterms:created "2025-09-17T07:15:24.727Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A mathematical function that takes locations of atoms as inputs and returns a potential energy."@en ;
  skos:example "A Lennard-Jones potential is a cheap way to approximate pairwise energies, especially for van der Waals bonding."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/1> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-17T07:15:24.727Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/potential> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/2/revisions/1> ;
  dcterms:created "2025-09-17T07:15:31.981Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Yield strength"@en ;
  skos:example "The yield strength of steel is a critical factor in determining its suitability for structural applications."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/potential/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-09-17T07:15:31.981Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/precipitation_hardening> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary> ;
  skos:prefLabel "precipitation hardening"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2026-07-26"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/precipitation_hardening> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1/revisions/1> ;
  dcterms:created "2026-07-26T11:24:52.064Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A strengthening treatment in which a supersaturated alloy is aged so that fine second-phase particles form throughout the matrix, obstructing dislocation motion. Strength rises as the particles grow toward an optimum size and falls again if ageing continues and they coarsen."@en ;
  skos:example "The aluminium-copper alloy reached peak hardness after eight hours of precipitation hardening and softened with longer ageing."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/precipitation_hardening/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-26T11:24:52.064Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/pseudopotential> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary> ;
  skos:prefLabel "pseudopotential"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:contributor "gemma4:26b" ;
  dcterms:created "2026-07-26"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/pseudopotential> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1/revisions/1> ;
  dcterms:created "2026-07-26T11:21:42.089Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A simplified stand-in for the nucleus and tightly bound core electrons of an atom, constructed so that the valence electrons behave as they would in the full system. Replacing the sharply varying core region with a smooth effective potential is what makes plane-wave electronic structure calculations tractable."@en ;
  skos:example "Results from two studies disagreed until the authors noted that each had used a different pseudopotential for oxygen."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-26T11:21:42.089Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/pseudopotential> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/2/revisions/1> ;
  dcterms:created "2026-07-26T11:21:50.647Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "An effective potential used in computational quantum mechanics to replace the complex interaction between an ion's nucleus and its core electrons with a simplified potential, focusing calculations solely on the chemically active valence electrons."@en ;
  skos:example "By employing a norm-conserving pseudopotential, the researcher significantly reduced the computational cost of the density functional theory (DFT) simulation without sacrificing the accuracy of the bond-length predictions."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/pseudopotential/definitions/2> ;
  dcterms:creator "gemma4:26b" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-26T11:21:50.647Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/qmc> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "qmc"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2/revisions/1> ;
  dcterms:contributor "Jaejun" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-10-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/qmc> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/1/revisions/1> ;
  dcterms:created "2025-10-20T20:42:24.900Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A class of computational methods that use stochastic sampling and random walks to solve the quantum many-body Schrödinger equation, providing highly accurate predictions of electronic structure and properties."@en ;
  skos:example "hard to give an example"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/1> ;
  dcterms:creator "Jaejun" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:42:24.900Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/qmc> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2/revisions/1> ;
  dcterms:created "2025-10-20T20:42:34.321Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Quasi-Molecular Crystal (QMC) – A crystal structure where molecules are arranged in a disordered, yet correlated, manner, exhibiting properties intermediate between crystalline and amorphous solids."@en ;
  skos:example "Silicon dioxide (SiO₂) forms a QMC, exhibiting some crystalline order but also retaining a degree of disorder due to vibrational motion."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/qmc/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:42:34.321Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/sintering> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "sintering"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2026-07-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/sintering> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/1/revisions/1> ;
  dcterms:created "2026-07-20T14:09:19.136Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A process where powder is heated so the particles stick together and form a solid piece."@en ;
  skos:example "Ceramic mugs are made by sintering clay powder in a kiln."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T14:09:19.136Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/sintering> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2/revisions/1> ;
  dcterms:created "2026-07-20T17:21:20.378Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A thermal process, applicable to both metals and ceramics, in which a powder compact is heated to temperatures below its melting point; this induces atomic diffusion across particle boundaries to reduce surface energy, resulting in neck formation, grain growth, and densification."@en ;
  skos:example "The manufacturing of advanced alumina ceramics involves sintering a green body in a high-temperature kiln to achieve near-theoretical density and eliminate residual porosity."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/sintering/definitions/2> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T17:21:20.378Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/space_group> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "space group"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/3/revisions/1> ;
  dcterms:contributor "Elif Ertekin" ;
  dcterms:contributor "gemma3" ;
  dcterms:contributor "Colton Gerber" ;
  dcterms:created "2025-10-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/1/revisions/1> ;
  dcterms:created "2025-10-20T20:37:20.187Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The group of isometries acting on Euclidean space that contains a subgroup of three linearly independent translations. "@en ;
  skos:example "P432"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/1> ;
  dcterms:creator "Elif Ertekin" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-10-20T20:37:20.187Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2/revisions/1> ;
  dcterms:created "2025-10-20T20:37:35.305Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A mathematical group describing the symmetry operations of a crystal structure."@en ;
  skos:example "Cubic zirconia has the fluorite structure with space group Fm-3m."@en ;
  skos:example "The P432 space group describes the symmetry of cubic zirconia."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "community-reviewed" ;
  dcterms:created "2025-10-20T20:37:35.305Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/3> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group> ;
  matsci:definitionNumber "3"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/3/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/3/revisions/1> ;
  dcterms:created "2026-09-08T19:37:20.310Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/3/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A mathematical group describing the symmetry operations of a crystal structure—such as rotations, reflections, inversions, and translations—formally defined as the group of isometries acting on Euclidean space that contains a subgroup of three linearly independent translations."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/3> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/space_group/definitions/3> ;
  dcterms:creator "Colton Gerber" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-09-08T19:37:20.310Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "spinodal decomposition"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:created "2026-07-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/1/revisions/1> ;
  dcterms:created "2026-07-20T08:43:32.095Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A phase separation process where a mixture spontaneously separates into two phases without needing to overcome an energy barrier."@en ;
  skos:example "Spinodal decomposition in an Al-Zn alloy produces a fine interconnected microstructure."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T08:43:32.095Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2/revisions/1> ;
  dcterms:created "2026-07-20T08:44:21.438Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "A mechanism of phase separation in which a single-phase homogeneous mixture becomes unstable to small fluctuations in composition, leading to spontaneous decomposition into two distinct phases without the need for nucleation and growth."@en ;
  skos:example "Spinodal decomposition in an Al-Zn alloy produces a characteristic fine, interconnected microstructure."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/spinodal_decomposition/definitions/2> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T08:44:21.438Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/tensile> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/id4> ;
  skos:prefLabel "tensile"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2/revisions/1> ;
  dcterms:contributor "John Kunze" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2025-07-29"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/tensile> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/1/revisions/1> ;
  dcterms:created "2025-07-29T20:10:50.332Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "describing countervailing forces applied outward along the central axis of a material."@en ;
  skos:example "i'm feeling so tensile right now. i need a drink."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/1> ;
  dcterms:creator "John Kunze" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-07-29T20:10:50.332Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/id4/tensile> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2/revisions/1> ;
  dcterms:created "2025-07-29T20:11:19.666Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Relating to or subjected to pulling force; characterized by the ability to resist being stretched."@en ;
  skos:example "The steel cable had a high tensile strength, allowing it to withstand the immense weight of the bridge."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/id4/tensile/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2025-07-29T20:11:19.666Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/titanium> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "titanium"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2/revisions/1> ;
  dcterms:contributor "Scott McClellan" ;
  dcterms:contributor "gemma3" ;
  dcterms:created "2026-05-04"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/titanium> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/1/revisions/1> ;
  dcterms:created "2026-05-04T16:42:22.894Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "lightweight element, high melting point"@en ;
  skos:example "ti4si"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/1> ;
  dcterms:creator "Scott McClellan" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-05-04T16:42:22.894Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/titanium> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2/revisions/1> ;
  dcterms:created "2026-05-04T16:42:33.105Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "Titanium is a strong, lightweight, corrosion-resistant metal. It's known for its high strength-to-weight ratio and is used in aerospace, medical implants, and sporting goods."@en ;
  skos:example "Ti4Si"@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/titanium/definitions/2> ;
  dcterms:creator "gemma3" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-05-04T16:42:33.105Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/vocabulary/mrc> ;
  skos:prefLabel "work hardening"@en ;
  matsci:canonicalDefinition <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/1/revisions/1> ;
  skos:definition <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2/revisions/1> ;
  dcterms:contributor "Christopher Rauch" ;
  dcterms:contributor "gemma4:26b" ;
  dcterms:created "2026-07-20"^^xsd:date .

<https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/1> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening> ;
  matsci:definitionNumber "1"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/1/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/1/revisions/1> ;
  dcterms:created "2026-07-20T08:51:18.685Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/1/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The strengthening of a metal by plastic deformation, caused by dislocation multiplication and entanglement."@en ;
  skos:example "Cold rolling increases the strength of copper sheet through work hardening."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/1> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/1> ;
  dcterms:creator "Christopher Rauch" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T08:51:18.685Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2> a matsci:Definition ;
  dcterms:isPartOf <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening> ;
  matsci:definitionNumber "2"^^xsd:positiveInteger ;
  matsci:currentRevision <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2/revisions/1> ;
  dcterms:hasVersion <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2/revisions/1> ;
  dcterms:created "2026-07-20T08:51:19.803Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2/revisions/1> a matsci:DefinitionRevision ;
  rdf:value "The process by which a ductile metal becomes harder and stronger as it is plastically deformed, occurring due to an increase in dislocation density and the subsequent entanglement of these dislocations, which restricts further lattice movement."@en ;
  skos:example "The machinist noted that the stainless steel drill bit was dulling rapidly due to the intense work hardening experienced during the heavy-duty machining process."@en ;
  dcterms:isVersionOf <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2> ;
  prov:specializationOf <https://w3id.org/matsci-sam/vocabulary/mrc/work_hardening/definitions/2> ;
  dcterms:creator "gemma4:26b" ;
  matsci:version "1"^^xsd:positiveInteger ;
  matsci:status "proposed" ;
  dcterms:created "2026-07-20T08:51:19.803Z"^^xsd:dateTime .

<https://w3id.org/matsci-sam/tags/topics> a skos:ConceptScheme ;
  dcterms:title "Topics"@en ;
  dcterms:description "Community tags applied to definitions."@en ;
  matsci:curated false .

<https://w3id.org/matsci-sam/tags/pspp> a skos:ConceptScheme ;
  dcterms:title "PSPP facets"@en ;
  dcterms:description "Processing, Structure, Properties, Performance. A navigation aid that classifies the term concept, following the facet analysis of Greenberg et al. (2023) and the materials paradigm it draws on. A term may be assigned more than one facet. A facet classifies terms and is never the same concept as a term, so it is never bridged to one."@en ;
  matsci:curated true ;
  skos:hasTopConcept <https://w3id.org/matsci-sam/tags/pspp/performance> ;
  skos:hasTopConcept <https://w3id.org/matsci-sam/tags/pspp/processing> ;
  skos:hasTopConcept <https://w3id.org/matsci-sam/tags/pspp/properties> ;
  skos:hasTopConcept <https://w3id.org/matsci-sam/tags/pspp/structure> .

<https://w3id.org/matsci-sam/tags/pspp/performance> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:topConceptOf <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:prefLabel "Performance"@en ;
  skos:definition "Terms for how a material behaves in service, under the conditions and over the time that an application imposes. Performance follows from properties, and it is where the inverse design pathway begins."@en ;
  skos:scopeNote "Assign this facet to a term that names behavior in service, such as durability, reliability, or a mode of failure. Greenberg et al. report this facet as the hardest to apply, because it describes a dynamic aspect of a material rather than a fixed one, so a term that also names a measurable characteristic may take Properties as well."@en .

<https://w3id.org/matsci-sam/tags/pspp/processing> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:topConceptOf <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:prefLabel "Processing"@en ;
  skos:definition "Terms for how a material is made, shaped, or treated, including synthesis, forming, heat treatment, and joining. Processing establishes structure."@en ;
  skos:scopeNote "Assign this facet to a term that names an operation performed on a material, or a route by which one is produced."@en .

<https://w3id.org/matsci-sam/tags/pspp/properties> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:topConceptOf <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:prefLabel "Properties"@en ;
  skos:definition "Terms for the measurable characteristics that follow from structure, including mechanical, thermal, electrical, optical, and chemical behavior."@en ;
  skos:scopeNote "Assign this facet to a term that names a measurable characteristic. A term for how a material behaves in an application belongs under Performance."@en .

<https://w3id.org/matsci-sam/tags/pspp/structure> a skos:Concept ;
  skos:inScheme <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:topConceptOf <https://w3id.org/matsci-sam/tags/pspp> ;
  skos:prefLabel "Structure"@en ;
  skos:definition "Terms for the arrangement of the constituents of a material at any scale, from atomic and crystal structure through microstructure to macroscopic form. Structure results from processing and gives rise to properties."@en ;
  skos:scopeNote "Assign this facet to a term that names an arrangement, a phase, or a feature observed at any length scale. A term for a measurement of that arrangement belongs under Properties."@en .

<https://w3id.org/matsci-sam/collections/id4_2025_terms> a skos:Collection ;
  skos:prefLabel "ID4 terms, 2025"@en ;
  dcterms:description "The terms the platform carried through the 2025 study period, including a few first defined in the testing that followed it."@en ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/alloy> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/band_gap> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/creep> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/data> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/dielectric> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/dynamical> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/ferroelectric> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/fuel_cell> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/material> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/melt> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/motif> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/novel> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/potential> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/tensile> .

<https://w3id.org/matsci-sam/collections/id4_round_two_terms> a skos:Collection ;
  skos:prefLabel "ID4 terms, round two"@en ;
  dcterms:description "Eight terms from the 2025 period whose definitions the group settles in the second study."@en ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/activation_energy> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/band_gap> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/coordination_environment> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/density_functional_theory_dft> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/elastic_properties> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/high-entropy_alloy> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/phase_diagram> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/id4/space_group> .

<https://w3id.org/matsci-sam/collections/mrc_demo_terms> a skos:Collection ;
  skos:prefLabel "MRC demonstration terms"@en ;
  dcterms:description "Two terms from the 2025 period, walked as a short demonstration of the walkthrough."@en ;
  owl:deprecated true .

<https://w3id.org/matsci-sam/collections/mrc_pilot_terms_2026_08_26> a skos:Collection ;
  skos:prefLabel "MRC pilot terms, August 2026"@en ;
  dcterms:description "Four terms from the Metadata Research Center vocabulary selected for the August 2026 pilot."@en ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/mrc/annealing> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/mrc/fatigue> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/mrc/martensite> ;
  skos:member <https://w3id.org/matsci-sam/vocabulary/mrc/sintering> .