Wollastonite vs. Mullite

Both wollastonite and mullite are oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is wollastonite and the bottom bar is mullite.

Wollastonite Mullite

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Material Properties

Compressive (Crushing) Strength, MPa		260
Compressive (Crushing) Strength, MPa		800

Density, g/cm³		2.8
Density, g/cm³		2.7 to 3.0

Dielectric Constant (Relative Permittivity) At 1 MHz		3.5
Dielectric Constant (Relative Permittivity) At 1 MHz		6.3

Dielectric Strength (Breakdown Potential), kV/mm		6.0
Dielectric Strength (Breakdown Potential), kV/mm		16 to 17

Flexural Strength, MPa		100
Flexural Strength, MPa		130 to 160

Maximum Temperature: Mechanical, °C		1200
Maximum Temperature: Mechanical, °C		1680

Thermal Conductivity, W/m-K		0.8
Thermal Conductivity, W/m-K		3.5 to 11

Wollastonite vs. Mullite

Material Properties

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