The main performance parameters

Crystal structure

Cubic

Lattice Constant

12.02 A

Melting point

1970 ℃

Mohs hardness

8.5

Density

4.55 + 0.04g/cm³

Specific heat

0.59J/g cm? ^-3 @0-20 ℃

Modulus of elasticity

310 GPa

Young's modulus

3.17x10 ⁴ Kg/mm²

Poisson ratio

0.3

Tensile strength

0.13-0.26GPa

Thermal expansion coefficient

 [111]: 7.8x10 ^-6  /℃ @0-250℃

[110] : 7.7x10 ^-6  / ℃ @0-250℃

[100]: 8.2x10  ^-6 / ℃ @0-250℃

Thermal conductivity

14W/m/K@20 ℃

10.5W/m/K@100 ℃

Calorescence coefficient

Dn/dt = 7.3x10^-6 /℃

Thermal shock

800W/m

Refractive index

1.8197@1064mm

Transmittance range

250-5000nm
(Without absorption in 2000 - 3000 nm)

Anti-optical-damage threshold

≥ 15Jcm ^-2 @1064nm

Standard Orientation

<111> and <100>