| Refractive index(10.6 µ m) | 2.19 |
|---|---|
| Temperature variation of refractive index (°C-1) | 4.33 x 10-5 |
| Index of refraction inhomogeneity (ppm) | <100 |
| Density (gm / cc) | 4.08 |
Grain size (microns) |
20-100 |
| Flexural strength (psi, 4-pt loading) | 15,000 |
| Young's modulus (psi) | 10.8 x 106 |
Hardness (Knoop, 50 gm) |
250 |
| Electrical resistivity (ohm-cm) | ~1012 |
| Thermal expansion/°C (RT -500°C) | 7.85 x 10-6 |
| Thermal conductivity(25°C, cgs) | 0.040 |
Specific heat(cal / gm °C) |
0.112 |
Index of Refraction
| 0.50 microns | 2.419 |
|---|---|
| 1.00 microns | 2.292 |
| 3.00 microns | 2.257 |
| 5.00 microns | 2.246 |
| 7.00 microns | 2.232 |
| 9.00 microns | 2.212 |
| 10.60 microns | 2.192 |
| 11.00 microns | 2.186 |
| 13.00 microns | 2.152 |
| 15.00 microns | 2.106 |
