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Hexagonal Boron Nitride vs. Zircon

Hexagonal boron nitride belongs to the non-oxide engineering ceramics classification, while zircon belongs to the oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (14, 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 hexagonal boron nitride and the bottom bar is zircon.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.9 to 2.1
3.9
Dielectric Constant (Relative Permittivity) At 1 MHz 4.0 to 4.4
8.8
Dielectric Strength (Breakdown Potential), kV/mm 61 to 200
7.9
Flexural Strength, MPa 18 to 140
450
Maximum Temperature: Mechanical, °C 1030 to 2350
1650
Thermal Conductivity, W/m-K 29 to 96
3.5
Thermal Expansion, µm/m-K 0.54 to 18
5.0