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Thallium Bromoiodide vs. Cesium Iodide

Both thallium bromoiodide and cesium iodide are non-glass optical ceramics. There are 13 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is thallium bromoiodide and the bottom bar is cesium iodide.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 31
4.0
Poisson's Ratio 0.37
0.21
Shear Modulus, GPa 12
6.2

Thermal Properties

Melting Onset (Solidus), °C 420
620
Specific Heat Capacity, J/kg-K 150
200
Thermal Conductivity, W/m-K 0.55
1.1
Thermal Expansion, µm/m-K 6.0
48

Otherwise Unclassified Properties

Density, g/cm3 7.4
4.5
Light Transmission Range, µm 0.6 to 40
0.25 to 55
Refractive Index 2.4
1.9

Common Calculations

Stiffness to Weight: Axial, points 2.3
0.49
Stiffness to Weight: Bending, points 14
12
Thermal Diffusivity, mm2/s 0.5
1.2