Not all properties are available for all materials.
Ceramic thermal conductivity cryogenic.
Since ceramic materials have good mechanical properties and favorable thermal properties low thermal conductivity and thermal expansion they can be used as adequate materials in cryogenic engineering.
However the efficiency of cryogenic insulation materials is not solely determined by low thermal conductivity.
Looking at the values quoted in various handbooks papers and data sheets two things are observed.
The problem with the thermal conductivity of ceramics is the dependence on the composition grain size and manufacturing process which make it rather difficult to obtain a reliable value from literature only.
The materials currently in the database are ones commonly used in the construction of cryogenic hardware.
The thermal conductivity is specified by the unit of measure w m k.
The properties available include thermal conductivity specific heat linear thermal expansion thermal expansion coefficient and young s modulus.
The data are compared with those of other materials commonly used in the construction of cryogenic apparatus.
Abstract the thermal conductivity and specific heat of a commercial machinable ceramic have been measured to 0 06 k.