SiAlON vs. Forsterite

SiAlON belongs to the non-oxide engineering ceramics classification, while forsterite belongs to the oxide-based engineering ceramics. There are 8 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

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

SiAlON Forsterite (Mg₂SiO₄)

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Material Properties

Density, g/cm³		3.3
Density, g/cm³		2.1 to 3.1

Dielectric Constant (Relative Permittivity) At 1 MHz		9.3
Dielectric Constant (Relative Permittivity) At 1 MHz		6.2

Dielectric Strength (Breakdown Potential), kV/mm		8.3
Dielectric Strength (Breakdown Potential), kV/mm		7.9

Flexural Strength, MPa		680
Flexural Strength, MPa		40 to 160

Specific Heat Capacity, J/kg-K		880
Specific Heat Capacity, J/kg-K		850

Thermal Conductivity, W/m-K		19
Thermal Conductivity, W/m-K		1.7 to 3.5

Thermal Diffusivity, mm²/s		6.4
Thermal Diffusivity, mm²/s		0.94 to 1.3

Thermal Expansion, µm/m-K		3.6
Thermal Expansion, µm/m-K		9.0 to 10

SiAlON vs. Forsterite

Material Properties

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