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Zinc Sulfide vs. Lead-alkali-silica Glass

Zinc sulfide belongs to the non-glass optical ceramics classification, while lead-alkali-silica glass belongs to the glass and glass-ceramics. There are 5 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is zinc sulfide and the bottom bar is lead-alkali-silica glass.

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Material Properties

Density, g/cm3 4.1
Elastic (Young's, Tensile) Modulus, GPa 75
Stiffness to Weight: Axial, points 10
Stiffness to Weight: Bending, points 34
Thermal Expansion, µm/m-K 6.5