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Potassium Chloride vs. Engineering Porcelain

Potassium chloride belongs to the non-glass optical ceramics classification, while engineering porcelain belongs to the oxide-based engineering ceramics. There are 12 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is potassium chloride and the bottom bar is engineering porcelain.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 28
67 to 150
Poisson's Ratio 0.18
0.17
Shear Modulus, GPa 8.5
34

Thermal Properties

Specific Heat Capacity, J/kg-K 690
600 to 1000
Thermal Conductivity, W/m-K 6.5
1.8 to 6.5
Thermal Expansion, µm/m-K 36
2.0 to 6.6

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 4.6
6.5
Electrical Dissipation At 1 MHz 0.00010
0.00043 to 0.013

Otherwise Unclassified Properties

Density, g/cm3 2.0
2.3 to 3.0

Common Calculations

Stiffness to Weight: Axial, points 7.7
16 to 29
Stiffness to Weight: Bending, points 51
49 to 65
Thermal Diffusivity, mm2/s 4.7
0.73 to 3.9