Barium Fluoride (BaF2) Optical Material

Barium fluoride is a non-glass optical ceramic material.

Material Properties

Density4.9 g/cm3 (310 lb/ft3)

Elastic (Young's, Tensile) Modulus60 GPa (8.7 x 106 psi)

Knoop Hardness80

Light Transmission Range0.15 to 13 µm

Melting Onset (Solidus)1370 °C (2500 °F)

Poisson's Ratio0.32

Refractive Index1.6

Shear Modulus25 GPa (3.6 x 106 psi)

Specific Heat Capacity420 J/kg-K

Thermal Conductivity9.0 W/m-K

Thermal Diffusivity4.4 m2/s

Thermal Expansion18 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