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Cadmium Telluride vs. Magnesium Fluoride

Both cadmium telluride and magnesium fluoride are non-glass optical ceramics. There are 12 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
130
Poisson's Ratio 0.41
0.27

Thermal Properties

Melting Onset (Solidus), °C 1090
1260
Specific Heat Capacity, J/kg-K 210
980
Thermal Conductivity, W/m-K 5.0
28
Thermal Expansion, µm/m-K 5.9
11

Otherwise Unclassified Properties

Density, g/cm3 5.9
3.2
Light Transmission Range, µm 1.0 to 25
0.12 to 7.0
Refractive Index 2.6
1.4

Common Calculations

Stiffness to Weight: Axial, points 4.3
22
Stiffness to Weight: Bending, points 20
52
Thermal Diffusivity, mm2/s 4.1
8.8