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Hexagonal Boron Nitride vs. High-silica Glass

Hexagonal boron nitride belongs to the non-oxide engineering ceramics classification, while high-silica glass belongs to the glass and glass-ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is hexagonal boron nitride and the bottom bar is high-silica glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.9 to 2.1
2.4
Dielectric Strength (Breakdown Potential), kV/mm 61 to 200
34
Elastic (Young's, Tensile) Modulus, GPa 14 to 60
78
Electrical Dissipation At 1 Hz 0.0017
0.00044 to 0.00087
Electrical Dissipation At 1 MHz 0.00075 to 0.0018
0.00044 to 0.00088
Electrical Resistivity Order of Magnitude, 10x Ω-m 13 to 15
12
Flexural Strength, MPa 18 to 140
34
Stiffness to Weight: Axial, points 4.1 to 18
19
Stiffness to Weight: Bending, points 42 to 69
61
Thermal Expansion, µm/m-K 0.54 to 18
0.6 to 0.75