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Carbon-carbon vs. Calcium Fluoride

Carbon-carbon belongs to the non-oxide engineering ceramics classification, while calcium fluoride belongs to the non-glass optical ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is carbon-carbon and the bottom bar is calcium fluoride.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.7
3.2
Elastic (Young's, Tensile) Modulus, GPa 95
80
Poisson's Ratio 0.32
0.26
Shear Modulus, GPa 36
34
Specific Heat Capacity, J/kg-K 760
860
Stiffness to Weight: Axial, points 31
14
Stiffness to Weight: Bending, points 89
45
Thermal Conductivity, W/m-K 40
9.7
Thermal Diffusivity, mm2/s 31
3.5
Thermal Expansion, µm/m-K 4.0
19