|
|
| Thermal properties |
|
|
|
| Thermal
Expansion |
2.6
x 10-6 °C -1
|
| Melting Point |
1412
°C
|
| Thermal
diffusivity |
0.8 cm2s-1 |
| Thermal conductivity |
1.3 W cm-1
°C-1 |
| Specific heat |
0.7 J g-1
°C-1 |
|
|
| Mechanical properties |
|
|
|
| Young
Modulus |
1.31 x 1012
dyn/cm2 |
| Shear Modulus |
5.2x1011
dyn/cm2
@ 300K |
| Knoop
Hardness |
1150 kg/mm2 |
| Rigidity |
1.52 x 1019
dyn/cm2 |
| Poisson constant |
σ100 =
0.28
σ111 = 0.26 |
|
|
| Electrical properties |
|
|
|
| Di-electric
constant |
11.7 @ 300K |
|
|
| Optical properties |
|
|
|
| Transmission |
1.2 - 7.0μm; 25 - other 300μm |
| IRefractive
Index |
3.43 @ 4μm |
|
|
Transmission
Curve
|
|
|
|
