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CVD Diamond vs. Calcium Fluoride

CVD diamond belongs to the non-oxide engineering ceramics classification, while calcium fluoride belongs to the non-glass optical ceramics. There are 11 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is CVD diamond and the bottom bar is calcium fluoride.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1050
80
Poisson's Ratio 0.1
0.26

Thermal Properties

Specific Heat Capacity, J/kg-K 500
860
Thermal Conductivity, W/m-K 1900
9.7
Thermal Expansion, µm/m-K 1.0
19

Otherwise Unclassified Properties

Density, g/cm3 3.5
3.2
Light Transmission Range, µm 0.22 to 100
0.15 to 9.0
Refractive Index 2.4
1.4

Common Calculations

Stiffness to Weight: Axial, points 170
14
Stiffness to Weight: Bending, points 96
45
Thermal Diffusivity, mm2/s 1080
3.5