PROPERTIES of Zinc Selenide (ZnSe)
MECHANICAL PROPERTIES
Young Modulus : 67.2 GPa
Bulk Modulus : 40 GPa
Knoop Hardness : 1.03 GPa
Modulus of Rupture : 55.1 MPa
Poisson's Ratio : 0.28
Density : 5.27 g/cm3
THERMAL PROPERTIES
Melting Point : 1525°C
Max operating temperature (with coating) : 100°C
Specific Heat : 0.081 cal/(g·°C) @ 23°C
Thermal Expansion Coefficient : 5,6x10-6 °C-1 a -100°C
: 7,1x10-6 °C-1 a 0°C
: 8,3x10-6 °C-1 a 200°C
THERMAL PROPERTIES
Thermal Conductivity : 18 W/(m·°C) @ 20°C
ELECTRICAL PROPERTIES
Dielectric Constant for 106Hz : 6.76
OPTICAL PROPERTIES
| Transmission Range |
: 0.6...21μm |
| Transmittance (without coating) |
: 68% (2.5...12.5μm) |
| Refractive Index |
: 2.5914 a 0,6328μm |
| |
: 2.4865 @ 1,063μm |
| |
: 2.4508 @ 2,500μm |
| |
: 2.4015 @ 10,6μm |
| Damage Threshold |
: 5 x 104 W/cm2 |
Transmission Curve (with coating from 7.5 to 14μm)
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