Description of sapphire crystal glass

Sapphire is a single crystal aluminum oxide (Al2O3). It is one of the hardest materials. Sapphire has good transmission characteristics over the visible, and near IR spectrum. It exhibits high mechanical strength, chemical resistance, thermal conductivity and thermal stability. It is often used as crystal materials in specific field such as space technology where scratch or high temperature resistance is required

2. High thermal stability and excellent thermal conductivity make the sapphire crystal suitable for the applications in high power. The loss in a sapphire crystal is less than in another common optical crystal.

3. sapphire crystals can withstand considerably higher temperatures than most optical crystals with zero degradation.

4. sapphire crystals will not get dark and lose their brilliancy when exposed to UV light.

5. sapphire crystals are extremely stable and resistant to attack by strong acid due to sapphire’s high dielectric constant.