Forsterite vs. Steatite

Both forsterite and steatite are oxide-based engineering ceramics. There are 9 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 forsterite and the bottom bar is steatite.

Forsterite (Mg₂SiO₄)Steatite

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		2.1 to 3.1
Density, g/cm³		1.9 to 2.8

Dielectric Constant (Relative Permittivity) At 1 MHz		6.2
Dielectric Constant (Relative Permittivity) At 1 MHz		5.7 to 6.5

Dielectric Strength (Breakdown Potential), kV/mm		7.9
Dielectric Strength (Breakdown Potential), kV/mm		7.9 to 16

Electrical Dissipation At 1 MHz		0.00030
Electrical Dissipation At 1 MHz		0.0010 to 0.0060

Flexural Strength, MPa		40 to 160
Flexural Strength, MPa		32 to 150

Specific Heat Capacity, J/kg-K		850
Specific Heat Capacity, J/kg-K		850 to 860

Thermal Conductivity, W/m-K		1.7 to 3.5
Thermal Conductivity, W/m-K		1.8 to 2.5

Thermal Diffusivity, mm²/s		0.94 to 1.3
Thermal Diffusivity, mm²/s		0.79 to 1.1

Thermal Expansion, µm/m-K		9.0 to 10
Thermal Expansion, µm/m-K		7.0 to 9.0

Forsterite vs. Steatite

Material Properties

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