유리 is one of 32 materials in this atlas, grouped under ceramics: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Scores compare 유리 with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.
Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.
깊이 읽기
유리 (SiO2–Na2O–CaO (typical soda-lime)) is a family of grades whose density ~2.5 g/cm³, heat band softens ~500–700 °C, and fire letter A1.
유리 is sold as grades, not as a single substance. Chemistry SiO2–Na2O–CaO (typical soda-lime), density ~2.5 g/cm³, heat band softens ~500–700 °C.
This atlas treats 유리 as a system: mill route, coatings, tests and the cavity it sits in.
Conductivity note: ~1 W/m·K. Insulation score 28/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
Origin: Mesopotamia / Egypt; float 1959, Near East → St Helens. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: technical-ceramics.
Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.
Circularity mark 70/100. Ask which scrap, which certificate, which year.
United Kingdom · 1959
Pilkington float is a reference point in the public image of 유리.
Italy · Roman
Portland Vase is a reference point in the public image of 유리.
United Kingdom · 1851
Crystal Palace is a reference point in the public image of 유리.
United States · 1903
Owens machine is a reference point in the public image of 유리.
Global · 1980s–
Low-e IGU is a reference point in the public image of 유리.
United States · 2007–
Gorilla 유리 is a reference point in the public image of 유리.
Europe · medieval
Stained cathedral is a reference point in the public image of 유리.
US / DE · 1930s–
유리 wool cousin is a reference point in the public image of 유리.
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여섯 축에서 가장 가까운 이웃 — 강도, 내열, 화재, 단열, 가공성, 순환성.