{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.ceramic","code":"thing-q45621","url":"https://ver.cy/models/thing/q45621/","name":"ceramic","alternateNames":["Jōmon fire-flame vessel","earthen pot with narrow neck","tajine","plastic vase","hōroku","earthenware","Nderit pottery","Hafner ware","black-topped pottery","Garak Clay Pottery","Asiatic Pheasants","Panari ware"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A hard, brittle, heat-resistant material made by shaping and firing inorganic non-metallic substances such as clay, and the objects made from it, from earthenware, stoneware and porcelain vessels such as tajines, cooking pots and ancient Jomon vessels to tiles, sanitaryware and advanced technical ceramics for electronics, medicine and engineering; ceramics are among the oldest human technologies and a major art form.","purpose":"Let an agent explain ceramic materials and objects, distinguish types and firing, support making, buying and caring for ceramics, and describe traditions and technical ceramics.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Fired","Hard and brittle","Heat-resistant","Art and technology"],"structure":{"bundles":[{"id":"identify","name":"Identify","description":"Kinds of ceramic.","layers":[{"id":"types","name":"Types","description":"Earthenware to porcelain.","findings":[{"id":"types-finding","name":"Types","description":"Types.","questions":[{"text":"What kind of ceramic is this object, and how do earthenware, stoneware, porcelain and technical ceramics differ?","kind":"definition"},{"text":"Is the material or a specific object such as a tajine or vessel meant?","kind":"boundary"}]}]},{"id":"traditions","name":"Traditions","description":"Ceramic traditions.","findings":[{"id":"traditions-finding","name":"Traditions","description":"Traditions.","questions":[{"text":"What are traditions such as Jomon fire-flame vessels, Japanese horoku or regional pottery, as described by their cultures?","kind":"provenance"},{"text":"Which entry fits a specific tradition?","kind":"action"}]}]}]},{"id":"make","name":"Make","description":"Making ceramics.","layers":[{"id":"process","name":"Process","description":"Forming and firing.","findings":[{"id":"process-finding","name":"Process","description":"Process.","questions":[{"text":"How are ceramics formed, dried, glazed and fired, and what happens in the kiln?","kind":"definition"},{"text":"How can a beginner start pottery safely?","kind":"action"}]}]},{"id":"safety","name":"Safety","description":"Studio safety.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"Which safety rules apply to clay dust, glazes and kilns?","kind":"provenance"},{"text":"How are food-safe glazes ensured?","kind":"provenance"}]}]}]},{"id":"use","name":"Use","description":"Using and caring for ceramics.","layers":[{"id":"care","name":"Care","description":"Care and repair.","findings":[{"id":"care-finding","name":"Care","description":"Care.","questions":[{"text":"How should ceramic ware be used, cleaned and repaired, and which pieces are safe for cooking?","kind":"provenance"},{"text":"How is lead leaching from old glazes assessed?","kind":"provenance"}]}]},{"id":"technical","name":"Technical","description":"Technical ceramics.","findings":[{"id":"technical-finding","name":"Technical","description":"Technical ceramics.","questions":[{"text":"How are advanced ceramics used in electronics, medicine and engineering, and what properties make them suitable?","kind":"provenance"},{"text":"Which entry fits a specific technical ceramic?","kind":"action"}]}]}]},{"id":"history","name":"History","description":"History and art.","layers":[{"id":"history","name":"History","description":"History of ceramics.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did ceramics develop from prehistoric pottery to porcelain and modern materials, according to archaeologists and historians?","kind":"provenance"},{"text":"Which museums hold notable collections?","kind":"provenance"}]}]},{"id":"collect","name":"Collect","description":"Collecting ceramics.","findings":[{"id":"collect-finding","name":"Collect","description":"Collecting.","questions":[{"text":"How are ceramics identified, dated and valued by collectors?","kind":"provenance"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Describe kinds of ceramic, from earthenware to technical ceramics, and their uses.","Check and report whether ceramic ware is labelled as food-safe."],"mustNot":["Present glazed ware as safe for food when lead or cadmium content is unknown.","Advise grinding or sanding ceramics without dust protection.","Damage or remove archaeological ceramics from sites or collections.","Misattribute the origin or age of ceramic objects in a sale."],"requiresHuman":["Handling, cleaning or moving fragile ancient vessels in a collection."]},"ethics":{"considerations":["Toxic glazes have poisoned people who used ware for food and drink.","Ceramics carry the heritage of cultures from prehistory to today."],"affectedParties":["Users of tableware","Potters and factory workers","Heritage communities"]},"owners":{"steward":"The person who owns the object; museums and heritage bodies hold historic pieces.","roles":[],"masterSystems":[]},"relations":[{"target":"Q11438","type":"parent","note":"registry parent class"},{"target":"Q214609","type":"parent","note":"registry parent class"},{"target":"Q2424752","type":"parent","note":"registry parent class"},{"target":"material","type":"related","note":"category"},{"target":"product","type":"related","note":"category"},{"target":"glass","type":"related","note":"a related inorganic material"},{"target":"applied arts","type":"related","note":"ceramic art"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.ceramic","Wikidata: Q45621 (https://www.wikidata.org/wiki/Q45621)"]},"properties":{"applicability":"required","items":["Bulk density:  kg/m3 - Measure mass divided by bulk volume using a method appropriate to the material's open porosity.","Open porosity:  percent - Measure the proportion of bulk volume occupied by accessible pores using a suitable saturation or intrusion method.","Flexural strength:  MPa - Measure failure stress in a bending test with specified specimen geometry and loading conditions.","Thermal conductivity:  W/(m K) - Measure heat transfer through a specimen at a stated temperature because composition and porosity affect the result.","Linear thermal expansion coefficient:  1/K - Measure relative length change over a stated temperature interval using dilatometry."]},"recognition":{"applicability":"required","items":["Fired inorganic non-metallic material","Earthenware, stoneware, porcelain or technical","Glass is amorphous; plastics are polymers","Hard fired objects, glazed or unglazed, from pots to tiles."]},"capabilities":{"applicability":"required","items":["explain ceramic types and firing","identify ceramic objects and traditions","support making and care","describe technical ceramics"]},"hazards":{"applicability":"required","items":["Lead and cadmium leaching from glazes","Breakage and thermal shock","Silica dust in making"]},"interfaces":{"applicability":"required","items":["Food contact safety rules for ceramic ware","Technical ceramic standards","Heritage protection for archaeological ceramics"]},"context":{"applicability":"required","items":["Fired inorganic materials and objects.","earthenware","stoneware","porcelain","technical and advanced ceramics","ceramic traditions by culture"]}},"sources":[{"title":"Wikidata item Q45621: ceramic","url":"https://www.wikidata.org/wiki/Q45621","note":"identity and sense of the item"},{"title":"Wikipedia: Ceramic","url":"https://en.wikipedia.org/wiki/Ceramic","note":"general description of the item"}],"openQuestions":["Should each ceramic type be a separate entry?","How should safety standards be linked?","How should traditions be attributed?"],"resources":{"spec":"/models/things/publications/thing-q45621/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q45621/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T23:04:34Z","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 2026-10-07T10:10:31+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}