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Potassium Bromide vs. Forsterite

Potassium bromide belongs to the non-glass optical ceramics classification, while forsterite belongs to the oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is potassium bromide and the bottom bar is forsterite.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.8
2.1 to 3.1
Dielectric Constant (Relative Permittivity) At 1 MHz 4.9
6.2
Electrical Dissipation At 1 MHz 0.00020
0.00030
Specific Heat Capacity, J/kg-K 450
850
Thermal Conductivity, W/m-K 4.8
1.7 to 3.5
Thermal Diffusivity, mm2/s 3.9
0.94 to 1.3
Thermal Expansion, µm/m-K 39
9.0 to 10