ZnS

Structure:

Cubic (zincblende)

Density: 

4.08 g/ cm³

Knoop Hardness:

210 kg/ mm²

Young’s Modulus:

10.8 Mpsi

Poisson Ratio:

0.27

Coef. of Thermal Expansion:

6.8×10-6/K

Specific Heat:

0.469 J/gK

Thermal conductivity (at 25 °C):

0.16 W/cmK

Max. Transmittance (λ=7-12 μm):

≥ 71 %

Absorption Coef. (λ=10.6 μm):

≤0.15 cm-1(including 2 surfaces)

Thermo-Optic Coef. (dn/dT):

4.7 (λ =10.6 μm)

Refractive index (λ=10.6 μm):

2.34

Electrooptical coefficient r41 (λ=10.6 μm):

2×10-12 m/V

Max. crystal diameter/length:

ø38×30 mm

Diameter/Width

1-38 mm

Thickness/length

0.1-150 mm

Orientation

(110)

Surface quality

As-cut, 80/50, 60/40 per MIL-0-13830

Purity

99.995%, 99.999%

Particle size

0.01- 10 mm