产 品 说 明
| 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 | |