Forsterite vs. Beryllia

Both forsterite and beryllia are oxide-based engineering ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

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

Forsterite (Mg₂SiO₄)Beryllia (Beryllium Oxide, BeO)

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		2.1 to 3.1
Density, g/cm³		2.9

Dielectric Constant (Relative Permittivity) At 1 MHz		6.2
Dielectric Constant (Relative Permittivity) At 1 MHz		6.6

Dielectric Strength (Breakdown Potential), kV/mm		7.9
Dielectric Strength (Breakdown Potential), kV/mm		11

Electrical Dissipation At 1 MHz		0.00030
Electrical Dissipation At 1 MHz		0.00060

Flexural Strength, MPa		40 to 160
Flexural Strength, MPa		240

Specific Heat Capacity, J/kg-K		850
Specific Heat Capacity, J/kg-K		1050

Thermal Conductivity, W/m-K		1.7 to 3.5
Thermal Conductivity, W/m-K		270

Thermal Diffusivity, mm²/s		0.94 to 1.3
Thermal Diffusivity, mm²/s		89

Thermal Expansion, µm/m-K		9.0 to 10
Thermal Expansion, µm/m-K		8.0

Forsterite vs. Beryllia

Material Properties

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