Phase-change material in 1960s: NASA PCM
Read the condition on Phase-change material before the nickname. Year 1960s, line “NASA PCM,” figure 21. Fire letter in editorial use: paraffin = combustible; salts vary. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
This atlas treats Phase-change material as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: low-to-moderate; often needs fins or graphite. Insulation score 52/100 is relative to 32 entries — metals lose, VIPs and aerogels win. Origin: NASA / Telkes 1940s–70s; building PCM 2000s, United States / Germany. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: mineral-wool. Circularity mark 48/100. Ask which scrap, which certificate, which year. Related atlas entries, a short glossary, and three threads that keep Phase-change material honest. EN 13501-1 reaction-to-fire letter (A1–F), not a wall rating.
Thermal conductivity in W/m·K. Lower means better bulk insulation. Declared performance after blowing-agent or moisture drift. The zone where heat or chemistry changes the datasheet. A named chemistry/process variant, not a brand slogan. Boards + cavity + fasteners + coatings tested together.
The label keeps Phase-change material, 1960s, and 21. “NASA PCM” is the condition on the figure.1960s
Figures to keep
- Year of the condition
- 1960s
- Property figure
- 21
- Material
- Phase-change material
- Use line
- NASA PCM