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Carbon-carbon vs. Zinc Selenide

Carbon-carbon belongs to the non-oxide engineering ceramics classification, while zinc selenide belongs to the non-glass optical ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is carbon-carbon and the bottom bar is zinc selenide.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.7
5.3
Elastic (Young's, Tensile) Modulus, GPa 95
69
Poisson's Ratio 0.32
0.28
Specific Heat Capacity, J/kg-K 760
340
Stiffness to Weight: Axial, points 31
7.3
Stiffness to Weight: Bending, points 89
26
Thermal Conductivity, W/m-K 40
17
Thermal Diffusivity, mm2/s 31
9.5
Thermal Expansion, µm/m-K 4.0
7.3