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OPTICAL
Transmission Range: 1.2 to 15 microns
Refractive Index: 3.4223 at 5 microns
Reflection Loss: 46.2% at 5 microns (2 surfaces)
Restrahlen Peak: 1 x 10-3 cm-1 at 3 microns
DN/dT: 160 x 10-6e/C
DN/d?? = 0: 10.4??m
PHYSICAL
Density: 2.33 g/cm3
Melting Point: 1420C
Thermal Conductivity: 163.3 W/(m*K) at 273K
Thermal Expansion: 4.15 x 10-6/C
Hardness Knoop: 1150
Specific Heat Capacity: 703J/(kg K)
Dielectric Constant: 13 at 10GHz
Young's Modulus (E): 131 GPa
Shear Modulus (G): 79.9 GPa
Bulk Modulus (K): 102 GPa
Elastic Coefficients: C11 = 167 C12 = 65 C44 = 80
Poisson Ratio: 0.266
CHEMICAL
Solubility: Insoluble in water
Molecular Weight: 28.09
Class/Structure: Cubic diamond, Fd3m
REFRACTIVE INDEX: 3.94(1.40??m), 3.48(1.50??m), 3.47(1.66??m), 3.46(1.82??m), 3.46(2.05??m), 3.44(2.50??m ), 3.44(3.50-5.00??m ), 3.42(6.00-25.00??m )
Silicon
