Ceramic fibre in 2010s: Polycrystalline Al2O3

Scores compare Ceramic fibre 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.

Ceramic fibre (Al2O3–SiO2 (RCF) / alkaline earth silicate (AES)) is a family of grades whose density 64–192 kg/m³ blankets, heat band classification T often 1260–1400 °C, and fire letter A1. Ceramic fibre is sold as grades, not as a single substance. Chemistry Al2O3–SiO2 (RCF) / alkaline earth silicate (AES), density 64–192 kg/m³ blankets, heat band classification T often 1260–1400 °C.

This atlas treats Ceramic fibre as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: λ rises with T; still far below brick. Insulation score 80/100 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.