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Boron Carbide vs. Zircon

Boron carbide belongs to the non-oxide engineering ceramics classification, while zircon belongs to the oxide-based engineering ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is boron carbide and the bottom bar is zircon.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.1 to 2.7
3.9
Dielectric Constant (Relative Permittivity) At 1 MHz 6.4
8.8
Flexural Strength, MPa 170 to 410
450
Maximum Temperature: Mechanical, °C 1000 to 2500
1650
Strength to Weight: Axial, points 37 to 47
21
Strength to Weight: Bending, points 42 to 53
25
Tensile Strength: Ultimate (UTS), MPa 350
290
Thermal Conductivity, W/m-K 31 to 90
3.5
Thermal Expansion, µm/m-K 4.5 to 5.6
5.0