| OPTICAL |
|
| |
Transmission Range |
0.4 to 30 microns |
| |
Refractive Index |
2.1723 at 11 microns |
| |
Reflection Loss |
25.4% at 11 µm (2 surfaces) |
| |
Restrahlen Peak |
91.5 microns |
| |
dN/dT |
|
| |
dN/dµ = 0 |
5.5 microns |
| PHYSICAL |
|
| |
Density |
7.18 g/cm3 |
| |
Melting Point |
423°C |
| |
Thermal Conductivity |
0.7 W/(m? K) at 329K |
| |
Thermal Expansion |
50? 10-6/°C |
| |
Hardness |
Knoop 29.9 with 500g indenter |
| |
Specific Heat Capacity |
188 J/(kg? K) |
| |
Dielectric Constant |
32 at 1MHz |
| |
Young's Modulus (E) |
20.68 GPa |
| |
Shear Modulus (G) |
8.48 GPa |
| |
Bulk Modulus (K) |
22.81 GPa |
| |
Elastic Coefficients |
C11 = 38.5 C12 = 14.9 C44 = 7.37 |
| |
Apparent Elastic Limit |
20.7 MPa (3000psi) |
| |
Poisson Ratio |
0.219 |
| CHEMICAL |
|
| |
Solubility |
0.3g/100g water at 20°C |
| |
Molecular Weight |
40 mole % TlBr: 60 mole % TlCl |
| |
Class/Structure |
Cubic, CsCl structure, Pm3m,
no cleavage planes | |
|
