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Potassium Chloride vs. Zirconia

Potassium chloride belongs to the non-glass optical ceramics classification, while zirconia belongs to the oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.0
5.7 to 6.0
Dielectric Constant (Relative Permittivity) At 1 MHz 4.6
28
Elastic (Young's, Tensile) Modulus, GPa 28
190 to 200
Poisson's Ratio 0.18
0.25 to 0.29
Specific Heat Capacity, J/kg-K 690
400 to 510
Stiffness to Weight: Axial, points 7.7
19
Stiffness to Weight: Bending, points 51
33 to 34
Thermal Conductivity, W/m-K 6.5
2.2 to 4.3
Thermal Diffusivity, mm2/s 4.7
0.73 to 1.8
Thermal Expansion, µm/m-K 36
8.8 to 9.5