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

Syngony

Cubic

Symmetry Class

43m

Lattice Constants

a = 5.668 Å

Refractive Index at n_e

2.6645

Refractive Index at n_F' - n_C'

0.1841

Refractive Index at n_10.6

2.4034

Refractive Index at n_8.0 - n_12.5

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 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

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

Molecular Weight

144.33

Solubility

in water, gram/100cm³

insoluble

in acids

soluble