直徑偏差

+0/-0.005" (+0/-0.13 mm)

厚度偏差

± 0.005" (± 0.13 mm)

通光孔徑

85%

平行度

3 arc min

平坦度

2 waves at 633 nm

表面質(zhì)量

60/40

鍍膜參數(shù)

50/50 ± 10% R/T for 1.5-5 μm

鍍膜編號(hào)

BSMP-50-CAF2-1.5-5.0(參考下面曲線）

透射波長(zhǎng)范圍:

0.13 to 10 μm (Note: IR grade will have restricted performance outside   IR range)

0.12 to 7 μm (1)

0.6 to 21.0 μm

0.85 to > 20 micron   (1)(3)

折射率:

1.39908 at 5 μm   (1) (2)

No 1.413 at 0.22 μm (4)

2.4028 at 10.6 μm

2.653 @   10 microns (1)

反射損耗 :

5.4% at 5 μm

5.7% at 0.22 μm (2 surfaces)

29.1% at 10.6 μm (2 surfaces)

32% @ 10   microns

吸收系數(shù) :

7.8 x   10-4 cm-1 @ 2.7 μm

40 x 10-3 cm-1 at 2.7 μm

0.0005 cm-1 at 10.6 μm

n/a

Reststrahlen Peak :

35 μm

20 μm (1)

45.7 μm

n/a

dn/dT :

-10.6 x 10-6/°C   (3)

2.3 (para) 1.7 (perp) at 0.4 μm (1)

+61 x 10-6/°C at 10.6 μm at 298K

5.0 x   10-5 K-1

dn/dμ = 0 :

1.7 μm

1.4 μm

5.5 μm

n/a

密度：

3.18 g/cc

3.18g/cc

5.27 g/cc

6.2 g   cm-3 (2)

熔點(diǎn)：

1360°C

1255°C

1525°C (see notes below)

1092 °C

熱導(dǎo)率：

9.71 W   m-1 K-1 (4)

21 (para) 33.6 (perp) W m-1 K-1 at 300K (3)

18 W m-1 K-1 at 298K

6.2   W.m-1.K-1 at 293 K

熱膨脹：

18.85 x 10-6/°C   (5)(6)

13.7 (para) 8.9 (perp) x 10-6 /K (1)

7.1 x 10-6 /°C at 273K

5.9x10-6 K-1 at   293 K

硬度：

Knoop 158.3   (100) with 500g indenter

Knoop 415

Knoop 120 with 50g indenter

Knoop 45   (3)

比熱容：

854 J   Kg-1 K-1

1003 J Kg m-1 K-1

339 J Kg-1 K-1

210   J.kg-1.K-1 at 293 K

介電常數(shù) :

6.76 at 1MHz   (7)

4.87 (para) 5.45 (perp) at 1MHz (1)

n/a

11 @ 1MHz

Youngs Modulus (E) :

75.8 GPa (7)

138 GPa (2)

67.2 GPa

36.52 GPa

剪切模量 (G) :

33.77 GPa (7)

54.66GPa (2)

n/a

n/a

體積彈性模量 (K) :

82.71 GPa (7)

101.32 GPa (2)

40 GPa

25 GPa

彈性系數(shù) :

C11 = 164   C12 = 53 C44 = 33.7 (7)

C11=140 C12=89 C44=57 C13=63 C66=96 (2)

Not Available

C11=53.51;   C12=36.81; C44=19.94

表觀彈性限 :

36.54 MPa

49.6 MPa (7200 psi)

55.1 MPa (8000 psi)

5.9 MPa   (3)

泊松比 :

0.26

0.276 (2)

0.28

0.41

溶解度 :

0.0017g/100g   water at 20°C

0.0002g/100g water

0.001g/100g water

Insoluble   in water

分子量 :

78.08

62.32

144.33

240.02

類(lèi)別/結(jié)構(gòu) :

Cubic Fm3m   (#225) Fluorite Structure. Cleaves on (111)

Tetragonal P42/mnm (#136) Rutile Structure. Can cleave on c-axis   but

 not easily.

FCC Cubic, F43m (#216), Zinc Blende structure. (Polycrystalline)

Cubic ZnS   (110) cleavage

µm   

No

µm   

No

µm   

No

0.149   

1.5800

0.161   

1.5490

0.195   

1.5000

0.200   

1.4950

0.222   

1.4800

0.248   

1.4680

0.266   

1.4621

0.280   

1.4584

0.300   

1.454

0.337   

1.4481

0.400   

1.4419

0.486   

1.4370

0.588   

1.4339

0.656   

1.4325

0.687   

1.4320

0.728   

1.4314

0.884   

1.4298

1.014   

1.4288

1.100   

1.4283

1.250   

1.4275

1.650   

1.4256

1.900   

1.4244

2.058   

1.4236

2.450   

1.4214

2.700   

1.4199

2.800   

1.4192

3.050   

1.4175

3.400   

1.4149

4.000   

1.4096

4.400   

1.4057

4.800   

1.4014

5.000   

1.3991

5.304   

1.3952

5.893   

1.3871

6.483   

1.3782

7.072   

1.3681

7.661   

1.357

8.251   

1.3444

8.840   

1.3308

9.429   

1.3161