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Zinc Selenide Window Grade (ZnSe)
| Syngony |
Cubic |
| Symmetry Class |
43m |
| Lattice Constants |
a = 5.668 Å |
| Refractive Index at ne |
2.6645 |
| Refractive Index at nF' - nC' |
0.1841 |
| Refractive Index at n10.6 |
2.4034 |
| Refractive Index at n8.0 - n12.5 |
0.0285 |
| Thermal Coefficient of Refractive Index at 3.39 microns for ±60 °C |
(6 ... 6.63) x 10-5 |
| Transmission Range, microns |
0.55 - 18 |
Thermal Linear Expansion, °C-1
at 27 °C |
7.9 x 10-6 |
Thermal Conductivity, W/(m * °C)
at 20 °C |
14.1 |
| Specific Heat Capacity, J/(kg * °C) |
0.367 x 103 |
| Thermal Stability, °C |
57 ±7 |
| Melting Point, °C |
1520 ±15 |
| Density, g/cm3 at 20 °C |
5.26 |
| Mohs Hardness |
4 |
| Vickers Microhardness, Pa |
(101 ±3) x 107 |
| Young Modulus (E), Pa |
7.76 x 1010 |
| Shear Modulus (G), Pa |
2.96 x 1010 |
| Poisson Ratio |
0.311 |
| Molecular Weight |
144.33 |
| Solubility |
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| in water, gram/100 cm3 |
insoluble |
| in acids |
soluble |
| Wavelength, Microns |
Refractive Index |
| 1.0 |
2.4894 |
| 2.0 |
2.4462 |
| 3.0 |
2.4376 |
| 4.0 |
2.4331 |
| 5.0 |
2.4296 |
| 6.0 |
2.4258 |
| 7.0 |
2.4219 |
| 8.0 |
2.4176 |
| 9.0 |
2.4123 |
| 10.0 |
2.4067 |
| 11.0 |
2.4006 |
| 12.0 |
1.3936 |
| 12.5 |
2.3891 |
| 15.0 |
2.3662 |
| Wavelength, Microns |
Internal Transmittance |
| 0.5 |
0.65 |
| 1.0 |
0.76 |
| 3.0 |
0.94 |
| 5.0 |
0.97 |
| 7.0 |
0.99 |
| 8.0 |
0.99 |
| 9.0 |
0.99 |
| 10.0 |
0.99 |
| 12.0 |
0.98 |
| 15.0 |
0.90 |
| 20.0 |
0.16 |
Custom sizes and specifications are available on request.
© 1996 - 2008 MaTecK GmbH - Im Langenbroich 20 - D-52428 Juelich - phone: +49 (0) 2461 / 9352-0 - fax: +49 (0) 2461 / 9352-11 - Contact: info@mateck.de
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Crystallographic