Zinc Sulfide (ZnS) Optical Material

Zinc sulfide is a non-glass optical ceramic material.

Material Properties

Density4.1 g/cm3 (260 lb/ft3)

Elastic (Young's, Tensile) Modulus75 GPa (11 x 106 psi)

Light Transmission Range0.37 to 14 µm

Melting Onset (Solidus)1830 °C (3330 °F)

Poisson's Ratio0.28

Refractive Index2.3

Specific Heat Capacity520 J/kg-K

Thermal Conductivity27 W/m-K

Thermal Diffusivity13 m2/s

Thermal Expansion6.5 µm/m-K

The length of each bar compares the given value to the highest value in the database.

Further Reading

Handbook of Optical Constants of Solids, Edward D. Palik (editor), 1998

Handbook of Optical Materials, Marvin J. Weber, 2003