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Silver Chloride vs. Magnesium Fluoride

Both silver chloride and magnesium fluoride are non-glass optical ceramics.

For each property being compared, the top bar is silver chloride and the bottom bar is magnesium fluoride.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 20
130
Poisson's Ratio 0.4
0.27
Shear Modulus, GPa 7.0
76

Thermal Properties

Melting Onset (Solidus), °C 460
1260
Specific Heat Capacity, J/kg-K 360
980
Thermal Conductivity, W/m-K 1.2
28
Thermal Expansion, µm/m-K 31
11

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 12
5.2

Otherwise Unclassified Properties

Density, g/cm3 5.6
3.2
Light Transmission Range, µm 0.4 to 25
0.12 to 7.0
Refractive Index 2.0
1.4

Common Calculations

Stiffness to Weight: Axial, points 2.0
22
Stiffness to Weight: Bending, points 16
52
Thermal Diffusivity, mm2/s 0.57
8.8