Aluminum Nitride vs. Forsterite

Aluminum nitride belongs to the non-oxide engineering ceramics classification, while forsterite belongs to the oxide-based engineering ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

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

Aluminum Nitride (AlN)Forsterite (Mg₂SiO₄)

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Material Properties

Density, g/cm³		2.9 to 3.3
Density, g/cm³		2.1 to 3.1

Dielectric Constant (Relative Permittivity) At 1 MHz		6.9 to 28
Dielectric Constant (Relative Permittivity) At 1 MHz		6.2

Dielectric Strength (Breakdown Potential), kV/mm		15 to 56
Dielectric Strength (Breakdown Potential), kV/mm		7.9

Electrical Dissipation At 1 MHz		0.00020 to 0.0010
Electrical Dissipation At 1 MHz		0.00030

Flexural Strength, MPa		190 to 400
Flexural Strength, MPa		40 to 160

Specific Heat Capacity, J/kg-K		780
Specific Heat Capacity, J/kg-K		850

Thermal Conductivity, W/m-K		80 to 190
Thermal Conductivity, W/m-K		1.7 to 3.5

Thermal Diffusivity, mm²/s		31 to 74
Thermal Diffusivity, mm²/s		0.94 to 1.3

Thermal Expansion, µm/m-K		4.2 to 5.4
Thermal Expansion, µm/m-K		9.0 to 10

Aluminum Nitride vs. Forsterite

Material Properties

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