{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.intermetallic","code":"thing-q428069","url":"https://ver.cy/models/thing/q428069/","name":"intermetallic","alternateNames":["tantalum trialuminide","Neodymium bismuthide","Ca5Zn3","MgZn2","potassium dibismuthide","Frank–Kasper phases","potassium-zinc","CeCoIn5","magnesium bismuthide","sodium bismuthide","sodium stannide","sodium-bismuth"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A solid compound of two or more metallic elements with a definite composition and an ordered crystal structure distinct from those of its constituents, such as MgZn2 and other Laves and Frank-Kasper phases, tantalum trialuminide, neodymium bismuthide and alkali bismuthides, with properties often intermediate between metals and ceramics; intermetallics are used as high-temperature structural materials, magnets, hydrogen storage alloys, shape-memory alloys and superconductors, and occur as phases within many alloys.","purpose":"Let an agent explain intermetallic compounds and their structures, relay properties and applications from materials science references, describe notable families such as Laves and Frank-Kasper phases, and distinguish intermetallics from solid solutions and ordinary alloys.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Ordered structure","Definite stoichiometry","Brittleness and strength","Functional properties"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What intermetallics are.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is an intermetallic compound, and how does it differ from a solid solution alloy?","kind":"definition"},{"text":"Is the question about intermetallics in general or a specific compound or family?","kind":"boundary"}]}]},{"id":"structures","name":"Structures","description":"Structures.","findings":[{"id":"structures-finding","name":"Structures","description":"Structures.","questions":[{"text":"What are Laves, Frank-Kasper, Zintl and other structure families, with examples such as MgZn2?","kind":"definition"},{"text":"Which entry fits the specific family?","kind":"action"}]}]}]},{"id":"properties","name":"Properties","description":"Properties.","layers":[{"id":"mechanical","name":"Mechanical","description":"Mechanical properties.","findings":[{"id":"mechanical-finding","name":"Mechanical","description":"Mechanical.","questions":[{"text":"Why are intermetallics strong at high temperature yet brittle, and how is ductility improved?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"functional","name":"Functional","description":"Functional properties.","findings":[{"id":"functional-finding","name":"Functional","description":"Functional.","questions":[{"text":"What magnetic, superconducting, hydrogen storage and shape-memory properties do intermetallics show?","kind":"provenance"},{"text":"Which entry fits the specific property?","kind":"action"}]}]}]},{"id":"apply","name":"Apply","description":"Applications.","layers":[{"id":"structural","name":"Structural","description":"Structural use.","findings":[{"id":"structural-finding","name":"Structural","description":"Structural.","questions":[{"text":"How are titanium and nickel aluminides used in aerospace and energy?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]},{"id":"unwanted","name":"Unwanted","description":"Unwanted phases.","findings":[{"id":"unwanted-finding","name":"Unwanted","description":"Unwanted.","questions":[{"text":"How do intermetallic phases form in solder joints and welds, and how are they controlled?","kind":"provenance"},{"text":"Which entry fits solder?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Research and history.","layers":[{"id":"research","name":"Research","description":"Research.","findings":[{"id":"research-finding","name":"Research","description":"Research.","questions":[{"text":"What current research explores new intermetallics and high-entropy compounds?","kind":"provenance"},{"text":"Which entry fits materials research?","kind":"action"}]}]},{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How were intermetallics recognised and classified by Hume-Rothery, Laves and others?","kind":"provenance"},{"text":"Which entry fits the history of metallurgy?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Describe intermetallic compounds, their structures and properties from the literature.","Analyze materials data for intermetallic phases in projects it is authorized to support."],"mustNot":["Present untested properties of a new intermetallic as measured.","Hide brittleness or phase defects that affect a part's safety.","Ignore toxic metal dust hazards when handling materials."],"requiresHuman":["Approving an intermetallic material for a safety-critical part."]},"ethics":{"considerations":["Intermetallics go into engines, implants and electronics where failure harms people.","Some constituent metals are toxic to workers if handled carelessly."],"affectedParties":["Workers handling materials","Users of products"]},"owners":{"steward":"Nobody owns the class; the maker of a material or part answers for its specification.","roles":[],"masterSystems":[]},"relations":[{"target":"Q11173","type":"parent","note":"registry parent class"},{"target":"chemical compound","type":"related","note":"in registry terms"},{"target":"alloy","type":"related","note":"as ordered phases"},{"target":"Laves phase","type":"related","note":"as a major family"},{"target":"shape-memory alloy","type":"related","note":"such as NiTi"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.intermetallic","Wikidata: Q428069 (https://www.wikidata.org/wiki/Q428069)"]},"properties":{"applicability":"required","items":["MgZn2 structure: hexagonal Laves phase C14 structure","nickel aluminide melting point: about 1640 C - NiAl"]},"recognition":{"applicability":"required","items":["Ordered compounds of metals","Laves phases such as MgZn2, Frank-Kasper phases, aluminides, bismuthides","Solid solutions have random atom arrangement; ceramics are non-metallic compounds","Metallic solids, often brittle, forming distinct phases in alloys."]},"capabilities":{"applicability":"required","items":["explain the concept and structures","relay properties and applications","describe notable families","distinguish from alloys"]},"hazards":{"applicability":"required","items":["Brittle fracture","Unwanted intermetallic formation in solder joints","Confusing intermetallics with solid solutions"]},"interfaces":{"applicability":"required","items":["Materials standards for intermetallic alloys such as titanium aluminides in aerospace","No regulation of the concept"]},"context":{"applicability":"required","items":["Not applicable; a class of compounds.","Laves phases such as MgZn2","Frank-Kasper phases","aluminides such as tantalum trialuminide and titanium and nickel aluminides","bismuthides such as neodymium bismuthide and potassium dibismuthide","Zintl phases such as Ca5Zn3 type compounds","shape-memory and magnetic intermetallics","intermetallic superconductors"]}},"sources":[{"title":"Wikidata item Q428069: intermetallic","url":"https://www.wikidata.org/wiki/Q428069","note":"identity and sense of the item"},{"title":"Wikipedia: Intermetallic","url":"https://en.wikipedia.org/wiki/Intermetallic","note":"general description of the item"}],"openQuestions":["Should Laves phase and aluminide be separate primary entries?","How should materials databases be linked?","The registry entry has merged aliases naming specific compounds; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q428069/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q428069/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T03:05:08Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:52:00+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}