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PEEK vs. Cadmium Telluride

PEEK and cadmium telluride belong to fundamentally different material chemistries. PEEK is a polymeric material, while cadmium telluride is ceramic. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (24, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.3 to 1.5
5.9
Elastic (Young's, Tensile) Modulus, GPa 4.0 to 24
45
Melting Onset (Solidus), °C 340
1090
Specific Heat Capacity, J/kg-K 1390 to 1700
210
Stiffness to Weight: Axial, points 1.5 to 10
4.3
Stiffness to Weight: Bending, points 36 to 73
20
Thermal Conductivity, W/m-K 0.25 to 0.93
5.0
Thermal Diffusivity, mm2/s 0.1 to 0.51
4.1
Thermal Expansion, µm/m-K 15 to 52
5.9