Features of Sapphire
- High Strength, High Rigidity, High Anti- Abrasion, High Anti-Heat, High Anti-Corrosion Characteristics
- Stable Dielectric Constant, Very Low Dielectric Loss, Good Electrical Insulation
- Excellent Light Transmission
- Good Thermal Conductivity and High Heat Resistance
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Physical and Mechanical Properties of Sapphire Crystals |
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| Chemical Formula |
Al2O3 |
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Hardness Mohs: |
9 | |
| Compressive strength |
GPa 2.0 |
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Density |
3.98 g/cm3 | |
| Melting point |
2040 °C |
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Boiling point |
2980 °C | |
| Optical transmission range, µm |
0.17 – 5.5 |
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Refractive index at 0.532 µm |
n0=1.7717, ne=1.76355 |
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MoHs Scale Hardness 9.0
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