@prefix prov: . @prefix rdfs: . @prefix matsci: . a prov:Entity ; rdfs:label "ceramics" ; "2026-08-04 14:37:51.973777" . a prov:Entity, matsci:Definition ; rdfs:label "Definition 1" ; "1" . a prov:Entity, matsci:Definition ; rdfs:label "Definition 2" ; "2" . a prov:Entity, matsci:DefinitionRevision ; rdfs:label "Definition 1 · revision 1 (current)" ; prov:value "Inorganic, non-metallic solid composed of metallic or metalloid atoms chemically bonded to non-metallic atoms" ; "1" ; "1" ; "2026-08-04 14:37:51.973777+00" ; "initial" ; "0" ; "yes" ; "no" ; "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." ; "Christopher Rauch" ; "Initial contribution" . a prov:Activity ; rdfs:label "Write definition" ; "2026-08-04 14:37:51.973777+00" ; "initial" . a prov:Person ; rdfs:label "Christopher Rauch" . a prov:Entity, matsci:DefinitionRevision ; rdfs:label "Definition 2 · revision 1 (current)" ; prov: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." ; "2" ; "1" ; "2026-08-04 14:38:21.712383+00" ; "ai_generation" ; "0" ; "yes" ; "no" ; "The addition of zirconia to the alumina matrix creates a toughened ceramic capable of resisting crack propagation through phase transformation toughening." ; "MatBot Gemma 4" ; "Initial AI-generated definition" ; "gemma4:26b" ; "You are a materials science reference. When given a term, recall its established meaning in the materials science literature and define it as a technical glossary would: precise, concise, and specific to materials science. Return the definition and one example sentence using the term. Your example must be your own; do not reuse the example provided by the user." . a prov:Activity ; rdfs:label "Generate definition" ; "2026-08-04 14:38:21.712383+00" ; "ai_generation" . a prov:SoftwareAgent ; rdfs:label "gemma4:26b" . a prov:Entity ; rdfs:label "prompt: materials-reference" ; prov:value "You are a materials science reference. When given a term, recall its established meaning in the materials science literature and define it as a technical glossary would: precise, concise, and specific to materials science. Return the definition and one example sentence using the term. Your example must be your own; do not reuse the example provided by the user." ; "218eb36342d599c9" ; "materials-reference" . _:example_b9dbc12153143458_1_1 a prov:Entity ; rdfs:label "Definition 1 · example 1" ; prov:value "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." ; "1" ; "1" ; "yes" ; "Imported legacy example; exact source, actor, and time were not recorded" . _:publishExample_b9dbc12153143458_1_1 a prov:Activity ; rdfs:label "Import legacy example" ; "yes" ; "Legacy import; publication time was not recorded" . _:example_b9dbc12153143458_2_1 a prov:Entity ; rdfs:label "Definition 2 · example 1" ; prov:value "The addition of zirconia to the alumina matrix creates a toughened ceramic capable of resisting crack propagation through phase transformation toughening." ; "2" ; "1" ; "yes" ; "Imported legacy example; exact source, actor, and time were not recorded" . _:publishExample_b9dbc12153143458_2_1 a prov:Activity ; rdfs:label "Import legacy example" ; "yes" ; "Legacy import; publication time was not recorded" . _:featureExample_b9dbc12153143458_1_1 a prov:Activity ; rdfs:label "Import featured state for example 1" ; "import legacy featured state" ; "yes" ; "Selector and selection time were not recorded" . _:featuredExample_b9dbc12153143458_1_1 a prov:Entity ; rdfs:label "Featured example 1" ; "1" ; "1" ; "active" ; "yes" ; "Selection time was not recorded" . _:featureExample_b9dbc12153143458_2_2 a prov:Activity ; rdfs:label "Import featured state for example 1" ; "import legacy featured state" ; "yes" ; "Selector and selection time were not recorded" . _:featuredExample_b9dbc12153143458_2_2 a prov:Entity ; rdfs:label "Featured example 1" ; "2" ; "1" ; "active" ; "yes" ; "Selection time was not recorded" . a prov:Entity ; rdfs:label "Initial message" ; prov:value "\nceramics\n\nCeramics 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." . a prov:Entity ; rdfs:label "Comment by Christopher Rauch" ; prov:value "I would like to see additional information about the physical properties of ceramics" ; "human" ; "no" ; "1" . prov:specializationOf . prov:specializationOf . prov:wasDerivedFrom . prov:wasGeneratedBy . prov:wasAssociatedWith . prov:wasAttributedTo . prov:wasDerivedFrom . prov:wasGeneratedBy . prov:wasAssociatedWith . prov:wasAttributedTo . prov:used . _:example_b9dbc12153143458_1_1 prov:wasGeneratedBy _:publishExample_b9dbc12153143458_1_1 . _:publishExample_b9dbc12153143458_1_1 prov:used . _:example_b9dbc12153143458_2_1 prov:wasGeneratedBy _:publishExample_b9dbc12153143458_2_1 . _:publishExample_b9dbc12153143458_2_1 prov:used . _:featureExample_b9dbc12153143458_1_1 prov:used _:example_b9dbc12153143458_1_1 . _:featureExample_b9dbc12153143458_1_1 prov:used . _:featuredExample_b9dbc12153143458_1_1 prov:wasGeneratedBy _:featureExample_b9dbc12153143458_1_1 . _:featuredExample_b9dbc12153143458_1_1 prov:wasDerivedFrom _:example_b9dbc12153143458_1_1 . _:featureExample_b9dbc12153143458_2_2 prov:used _:example_b9dbc12153143458_2_1 . _:featureExample_b9dbc12153143458_2_2 prov:used . _:featuredExample_b9dbc12153143458_2_2 prov:wasGeneratedBy _:featureExample_b9dbc12153143458_2_2 . _:featuredExample_b9dbc12153143458_2_2 prov:wasDerivedFrom _:example_b9dbc12153143458_2_1 . prov:wasAttributedTo . prov:used . prov:wasAttributedTo . prov:wasDerivedFrom .