Aerogel in 1990s: NASA Stardust
The behaviour of Aerogel is written as 1990s’s “NASA Stardust,” fixed by 0. An advert’s adjective is not a melting point. “Room temperature” alone is not a figure. Related atlas entries, a short glossary, and three threads that keep Aerogel honest.
Aerogel (SiO2 network + >90% air) is a family of grades whose density ~0.003–0.15 g/cm³, heat band silica sinters; organic aerogels burn, and fire letter silica A1; polymer aerogels not. Aerogel is sold as grades, not as a single substance. Chemistry SiO2 network + >90% air, density ~0.003–0.15 g/cm³, heat band silica sinters; organic aerogels burn.
This atlas treats Aerogel as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: silica blankets ~0.015–0.025 W/m·K class. Insulation score 98/100 is relative to 32 entries — metals lose, VIPs and aerogels win. Fire letter in editorial use: silica A1; polymer aerogels not. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
Origin: Kistler 1931; NASA / Aspen 1990s–, United States. The process chapter follows feedstock → conversion → forming → finish → install. Uses span buildings to defence / safety. Pairings matter: vacuum-insulation. Circularity mark 50/100. Ask which scrap, which certificate, which year.
“NASA Stardust” for Aerogel in 1990s carries 0. Praise without that figure is not a property.1990s
Figures to keep
- Year of the condition
- 1990s
- Property figure
- 0
- Material
- Aerogel
- Use line
- NASA Stardust
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