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Alpha Quartz vs. Silver Bromide

Both alpha quartz and silver bromide are non-glass optical ceramics. There are 11 material properties with values for both materials. Properties with values for just one material (4, 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 alpha quartz and the bottom bar is silver bromide.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 91
32

Thermal Properties

Melting Onset (Solidus), °C 1590
430
Specific Heat Capacity, J/kg-K 720
290
Thermal Conductivity, W/m-K 8.5
1.2
Thermal Expansion, µm/m-K 9.5
30

Otherwise Unclassified Properties

Density, g/cm3 2.7
6.5
Light Transmission Range, µm 0.13 to 3.4
0.45 to 35
Refractive Index 1.6
2.3

Common Calculations

Stiffness to Weight: Axial, points 19
2.7
Stiffness to Weight: Bending, points 57
16
Thermal Diffusivity, mm2/s 4.4
0.64