@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/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 .