北京汇德信科技有限公司

硒化锌窗口级 Zinc Selenide Window Grade (ZnSe)


Crystallographic


Syngony

Cubic

Symmetry Class

43m

Lattice Constants

a = 5.668 Å


Optical


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 ℃

(6 ... 6.63) x 10-5

Transmission Range, microns

0.55 - 18


Thermal


Thermal Linear Expansion, ℃-1 at 27 ℃

7.9 x 10-6

Thermal Conductivity, W/(m * ℃) at 20 ℃

14.1

Specific Heat Capacity, J/(kg * ℃)

0.367 x 103

Thermal Stability, ℃

57 ±7

Melting Point, ℃

1520 ±15


Mechanical


Density, g/cm3 at 20 ℃

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


Chemical


Molecular Weight

144.33

Solubility


in water, gram/100cm3

insoluble

in acids

soluble


Ref. Index vs. Wavelength λ


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


Internal Transmittanceτ i (λ) vs. Wavelength λ


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.


 

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