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Zinc Selenide vs. Silicon Carbide

Zinc selenide belongs to the non-glass optical ceramics classification, while silicon carbide belongs to the non-oxide engineering 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.

For each property being compared, the top bar is zinc selenide and the bottom bar is silicon carbide.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 5.3
3.0 to 3.2
Elastic (Young's, Tensile) Modulus, GPa 69
370 to 490
Poisson's Ratio 0.28
0.14 to 0.21
Specific Heat Capacity, J/kg-K 340
670 to 1180
Stiffness to Weight: Axial, points 7.3
69 to 84
Stiffness to Weight: Bending, points 26
79 to 82
Thermal Conductivity, W/m-K 17
120 to 170
Thermal Diffusivity, mm2/s 9.5
38 to 79
Thermal Expansion, µm/m-K 7.3
4.0 to 4.5