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Barium Fluoride vs. Cadmium Telluride

Both barium fluoride and cadmium telluride are non-glass optical ceramics. There are 13 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is barium fluoride and the bottom bar is cadmium telluride.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 60
45
Knoop Hardness 80
45
Poisson's Ratio 0.32
0.41

Thermal Properties

Melting Onset (Solidus), °C 1370
1090
Specific Heat Capacity, J/kg-K 420
210
Thermal Conductivity, W/m-K 9.0
5.0
Thermal Expansion, µm/m-K 18
5.9

Otherwise Unclassified Properties

Density, g/cm3 4.9
5.9
Light Transmission Range, µm 0.15 to 13
1.0 to 25
Refractive Index 1.6
2.6

Common Calculations

Stiffness to Weight: Axial, points 6.8
4.3
Stiffness to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 4.4
4.1