Parameters for sapphire materials
Synthetic sapphire single crystals.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Synthetic sapphire single crystal, purity >99.99%–99.999% |
| Crystal | Triangular crystals/six square crystals;hexagonal rhombohedal |
| Chemical | Al₂O₃ |
| Molecular weight | 101.96 |
| Density | 3.98 g/cm³ |
| Yang's Model | 345Gpa / 50×10⁶psi |
| Bitmap Density | <1000 /cm² |
| Transmittance [0.3–4μm;1mm thick] | >85 % |
| Refractive Index [∥c] | 1.769 |
| Refractive Index [⊥c] | 1.760 |
| Double Refraction Rate [Ne-No] | 0.008 |
| Hardness [Mordecidence;9 Mohs std] | 9 级 |
| Hardness [Nupu hard;Knoop] | 1700 kg/mm² |
| Pressure resistance | 2.1 GPa |
| Rush strength. | 190 MPa |
| Break modulus | 435 GPa |
| Porsumby. | 0.27–0.29 |
| Melting Point | 2050 °C |
| Softening Point | ~1850 °C |
| Inflation factor [∥c] | 6.7×10⁻⁶ |
| Inflation factor [⊥c] | 5.0×10⁻⁶ |
| Electrical Resistivity [25°C] | >10¹⁴Ω |
| Dielectric Constant [∥c] | 11.5 |
| Dielectric Constant [⊥c] | 9.3 |
| Corrosiveness [Temperature] | Virtually unaffected by any solvents or acids at room temperature |
Applications
Datasheet
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Supplier Information
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