Clear fused quartz glass is a unique material with an unrivalled combination of purity, high temperature resistance, thermal shock resistance, high electrical insulation, optical transparency and chemical inertness.
|
|
|
|
|
|
|
|
|
|
Mechanical |
|
|
Density |
2.20 x 103 Kg/m 3 |
|
Youngs Modulus |
74 x 106 KN/m 2 |
|
Rigidity Modulus |
32 x 106 KN/m 2 |
|
Compresive Strength |
20 x 106 KN/m 2 |
|
Tensile Strength |
70 x 103 KN/m 2 |
|
Shear Strength |
70 x 103 KN/m 2 |
|
Moh's Hardness |
6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Electrical |
|
|
Electrical Resistivity |
2 x 10 19 ohm cm at 20°C 2 x 10 6 ohm cm at 800°C |
|
|
|
|
Dielectric Strength |
10 KV/mm at 20°C 2.5 KV/mm at 500°C |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Thermal |
|
|
Strain Point |
1385°K |
|
Annealing Point |
1455°K |
|
Softening Point |
1853°K |
|
Coefficient of Expansion |
0.52 x 10 -6 per °C |
|
Continuous Operating Temp. |
>1000°C |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Optical |
|
|
Useful Optical Range |
Synthetic 180 - 2000nm Natural 275 - 2000nm |
|
Refractive Index |
n D (589 nm) - 1.458 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|