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砷化镓 Gallium Arsenide (GaAs)

 

Crystallographic

 

Syngony

Cubic

Symmetry Class

43m F43m

Lattice Constants

a = 5.653 Å

 

Optical

 

Refractive Index at n8.0

3.34

Transmission Range, microns

1 - 15

Absorbance μ(λ), cm -1


at 8.0 microns

0.26

 

Thermal

 

Thermal Linear Expansion, ℃-1 for 0-30 ℃

5.39 x 10-6

Thermal Conductivity, W/(m * ℃) at 25 ℃

46.05

Specific Heat Capacity, J/(kg * ℃)

350

Melting Point, ℃

1238

 

Mechanical

 

Density, g/cm3 at 20 ℃

5.316

Mohs Hardness

4.5

Vickers Microhardness, Pa

6.9 x 109

Young Modulus (E), Pa

85 x 109

Poisson Ratio

0.31

 

Chemical

 

Molecular Weight

144.64

Solubility


in water, gram/100 cm3

insoluble

 

Ref. Index vs. Wavelength λ

Wavelength, Microns

Refractive Index

8.0

3.34

10.0

3.035

14.5

2.82

17.0

2.59

19.0

2.41


Custom sizes and specifications are available on request.



 

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