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Boron Carbide vs. Zinc Sulfide

Boron carbide belongs to the non-oxide engineering ceramics classification, while zinc sulfide 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.

For each property being compared, the top bar is boron carbide and the bottom bar is zinc sulfide.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.1 to 2.7
4.1
Elastic (Young's, Tensile) Modulus, GPa 240 to 460
75
Poisson's Ratio 0.17 to 0.19
0.28
Specific Heat Capacity, J/kg-K 950
520
Stiffness to Weight: Axial, points 63 to 100
10
Stiffness to Weight: Bending, points 91 to 100
34
Thermal Conductivity, W/m-K 31 to 90
27
Thermal Diffusivity, mm2/s 16 to 38
13
Thermal Expansion, µm/m-K 4.5 to 5.6
6.5