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Limits RegistrySilica aerogel can achieve thermal conductivities as low as about 0.014 W/(m*K) in air at room temperature — lower than still air itself in some ultralow-density formulations — making it among the best solid thermal insulators known, used in NASA's Stardust comet-dust collector and in extreme-cold-weather insulation.
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Silica aerogel can achieve thermal conductivities as low as about 0.014 W/(m*K) in air at room temperature — lower than still air itself in some ultralow-density formulations — making it among the best solid thermal insulators known, used in NASA's Stardust comet-dust collector and in extreme-cold-weather insulation.
The lowest thermal conductivity confirmed for a solid, self-supporting material at room temperature and atmospheric pressure.
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1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-LOWEST-THERMAL-CONDUCTIVITY-SOLID
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Limits Registry. LR-LOWEST-THERMAL-CONDUCTIVITY-SOLID. Lowest thermal conductivity of a solid material. 2026.