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Wollastonite vs. Zirconia

Both wollastonite and zirconia are oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

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

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa 260
1260 to 3080
Density, g/cm3 2.8
5.7 to 6.0
Dielectric Constant (Relative Permittivity) At 1 MHz 3.5
28
Dielectric Strength (Breakdown Potential), kV/mm 6.0
7.7 to 9.0
Flexural Strength, MPa 100
630 to 970
Maximum Temperature: Mechanical, °C 1200
500 to 1330
Thermal Conductivity, W/m-K 0.8
2.2 to 4.3