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Engineering Porcelain vs. Zinc Selenide

Engineering porcelain belongs to the oxide-based 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 (21, 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 engineering porcelain and the bottom bar is zinc selenide.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.3 to 3.0
5.3
Elastic (Young's, Tensile) Modulus, GPa 67 to 150
69
Poisson's Ratio 0.17
0.28
Specific Heat Capacity, J/kg-K 600 to 1000
340
Stiffness to Weight: Axial, points 16 to 29
7.3
Stiffness to Weight: Bending, points 49 to 65
26
Thermal Conductivity, W/m-K 1.8 to 6.5
17
Thermal Diffusivity, mm2/s 0.73 to 3.9
9.5
Thermal Expansion, µm/m-K 2.0 to 6.6
7.3