| Structure | Wurtzite (Hexagonal) |
| Density: | 4.825 g/ cm3 |
| Young’s Modulus: | 45 GPa |
| Coef. of Thermal Expansion (500 K): | α 1=6.26×10-6/K;
α 3=3.5×10-6/K |
| Specific Heat: | 0.47 J/gK |
| Thermal conductivity (at 25 °C): | 0.2 W/cmK |
| Max. Transmittance (λ =2.5-15 μm): | ≥ 71 % |
| Absorption Coef. (λ =10.6 μm): | ≤ 0.007 cm-1 (including 2 surfaces) |
| Refractive index (λ =10.6 μm): | 2.2245 (no), 2.2376 (ne) |
| Specific resistivity | a). low: < 1 Ohm*cm
b). high: > about 10^11 Ohm*cm |
| Max. crystal diameter/length: | ø 40×30 mm |
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