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Alpha Quartz vs. Hexagonal Boron Nitride

Alpha quartz belongs to the non-glass optical ceramics classification, while hexagonal boron nitride belongs to the non-oxide engineering ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is alpha quartz and the bottom bar is hexagonal boron nitride.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.7
1.9 to 2.1
Elastic (Young's, Tensile) Modulus, GPa 91
14 to 60
Poisson's Ratio 0.13
Specific Heat Capacity, J/kg-K 720
840 to 1610
Stiffness to Weight: Axial, points 19
4.1 to 18
Stiffness to Weight: Bending, points 57
42 to 69
Thermal Conductivity, W/m-K 8.5
29 to 96
Thermal Diffusivity, mm2/s 4.4
9.9 to 34
Thermal Expansion, µm/m-K 9.5
0.54 to 18