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Potassium Chloride vs. Hexagonal Boron Nitride

Potassium chloride belongs to the non-glass optical ceramics classification, while hexagonal boron nitride belongs to the non-oxide engineering ceramics. There are 11 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 28
14 to 60
Poisson's Ratio 0.18
0.11

Thermal Properties

Specific Heat Capacity, J/kg-K 690
840 to 1610
Thermal Conductivity, W/m-K 6.5
29 to 96
Thermal Expansion, µm/m-K 36
0.54 to 18

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 4.6
4.0 to 4.4
Electrical Dissipation At 1 MHz 0.00010
0.00075 to 0.0018

Otherwise Unclassified Properties

Density, g/cm3 2.0
1.9 to 2.1

Common Calculations

Stiffness to Weight: Axial, points 7.7
4.1 to 18
Stiffness to Weight: Bending, points 51
42 to 69
Thermal Diffusivity, mm2/s 4.7
9.9 to 34