硒化镉晶体

结构

Wurtzite (Hexagonal)

密度: 

5.81 g/ cm³

杨氏模量:

5×1011 dyne/cm2

热膨胀系数 (500 K):

α 1=6.26×10-6/K; 

α 3=4.28×10-6/K

比热:

0.49 J/gK

导热系数 (at 25 °C):

0.04 W/cmK

最大透射率 (λ =2.5-15 μm):

≥ 71 %

吸收系数 (λ =10.6 μm):

≤ 0.0015 cm-1 (including 2 surfaces)

折射率 (λ =10.6 μm):

2.4258 (no), 

2.4437 (ne)

电阻率

a). low: < 1 Ohm*cm 

b). high: > about 10^11 Ohm*cm

Max. single crystal diameter/length:

Ø40mm X L: 80 mm

Max. IR optic blank diameter/length:

Ø50mm X L:10 mm OR plate 50 mm X 15 mm X 12 mm

Diameter/Width

1-50 mm

Thickness/length

0.1-150 mm

Orientation

(0001), (10-10), (11-20)

Surface quality

As-cut, 80/50, 60/40 per MIL-0-13830

Purity

99.995%, 99.999%

Particle size

0.01- 10 mm