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Magnesium Fluoride vs. Aluminum Nitride

Magnesium fluoride belongs to the non-glass optical ceramics classification, while aluminum nitride belongs to the non-oxide engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is magnesium fluoride and the bottom bar is aluminum nitride.

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Material Properties

Density, g/cm3 3.2
2.9 to 3.3
Dielectric Constant (Relative Permittivity) At 1 MHz 5.2
6.9 to 28
Elastic (Young's, Tensile) Modulus, GPa 130
330
Poisson's Ratio 0.27
0.21 to 0.31
Specific Heat Capacity, J/kg-K 980
780
Stiffness to Weight: Axial, points 22
55 to 63
Stiffness to Weight: Bending, points 52
69 to 80
Thermal Conductivity, W/m-K 28
80 to 190
Thermal Diffusivity, mm2/s 8.8
31 to 74
Thermal Expansion, µm/m-K 11
4.2 to 5.4