Technical ceramics in 1980s: Ceramic hip heads
Read the condition on Technical ceramics before the nickname. Year 1980s, line “Ceramic hip heads,” figure 2. Offcuts, red mud, slag, dust and used blowing agents are the unglamorous mass balance.
Scores compare Technical ceramics 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.
Technical ceramics (Al2O3, ZrO2, SiC, Si3N4…) is a family of grades whose density 3.2–6 g/cm³ class, heat band often >2000 °C, and fire letter A1. Technical ceramics is sold as grades, not as a single substance. Chemistry Al2O3, ZrO2, SiC, Si3N4…, density 3.2–6 g/cm³ class, heat band often >2000 °C.
This atlas treats Technical ceramics as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: Al2O3 ~20–30; AlN higher; ZrO2 low. Insulation score 46/100 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.
The label keeps Technical ceramics, 1980s, and 2. “Ceramic hip heads” is the condition on the figure.1980s
Figures to keep
- Year of the condition
- 1980s
- Property figure
- 2
- Material
- Technical ceramics
- Use line
- Ceramic hip heads