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Silicon

Source:Nanjing Sapphire Electro-Optics Co., Ltd     Update time:2016/3/1 0:20:08

 Silicon Transmission 

 
 Silicon Properties 
   

With features of high strength, corrosion resistance, good transmission in 1.5um-5um wavelength range, and good damage resistance in high power, mono-crystal silicon are widely used as epitaxial substrate in SIC fields.

 

Chemical Formula

Si

Molecular Weight

28.09

Crystal Class

Cubic

Lattice Constant, Å

5.43

Density, g/cm3 at 293 K

2.329

Dielectric Constant for 9.37 x 109 Hz

13

Melting Point, K

1690

Thermal Conductivity, W/(m K)
at 125 K
at 313 K
at 400 K


598.6
163
105.1

Thermal Expansion, 1/K
at 75 K
at 293 K
at 1400 K


-0.5 x 10-6
2.6 x 10-6
4.6 x 10-6

Specific Heat, cal/(g K)
at 298 K
at 1800 K


0.18
0.253

Debye Temperature, K

640

Solubility in water

None

Knoop Hardness, kg/mm2

1100

Mohs Hardness

7

Young's Modulus, GPa

130.91

Shear Modulus, GPa

79.92

Bulk Modulus, GPa

101.97

Poisson's Ratio

0.28