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Machinable Glass-ceramic vs. Zinc Selenide

Machinable glass-ceramic belongs to the glass and glass-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 (19, in this case) are not shown.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.7
5.3
Elastic (Young's, Tensile) Modulus, GPa 67
69
Poisson's Ratio 0.29
0.28
Specific Heat Capacity, J/kg-K 790
340
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 51
26
Thermal Conductivity, W/m-K 1.2
17
Thermal Diffusivity, mm2/s 0.56
9.5
Thermal Expansion, µm/m-K 21
7.3