Steatite vs. Forsterite

Both steatite and forsterite 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 steatite and the bottom bar is forsterite.

Steatite Forsterite (Mg₂SiO₄)

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Material Properties

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

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

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

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

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

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

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

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

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

Steatite vs. Forsterite

Material Properties

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