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Potassium Chloride vs. Machinable Glass-ceramic

Potassium chloride belongs to the non-glass optical ceramics classification, while machinable glass-ceramic belongs to the glass and glass-ceramics. There are 12 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is potassium chloride and the bottom bar is machinable glass-ceramic.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 28
67
Poisson's Ratio 0.18
0.29
Shear Modulus, GPa 8.5
26

Thermal Properties

Specific Heat Capacity, J/kg-K 690
790
Thermal Conductivity, W/m-K 6.5
1.2
Thermal Expansion, µm/m-K 36
21

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 4.6
6.4
Electrical Dissipation At 1 MHz 0.00010
0.0050

Otherwise Unclassified Properties

Density, g/cm3 2.0
2.7

Common Calculations

Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 51
51
Thermal Diffusivity, mm2/s 4.7
0.56