Sapphire crystal glass, also known as alumina glass, is mainly composed of alumina (Al2O3), with a content of up to 99.9%. This high-purity alumina gives sapphire glass unique physical and chemical properties.
The Performance of Sapphire crystal glass:
(1) Hardness: Sapphire glass has a very high hardness, second only to diamond, and has good wear resistance.
(2) Melting point: The melting point of sapphire glass is as high as 2050 ℃, far higher than that of ordinary glass.
(3) Transparency: Sapphire glass has good transparency, especially in the ultraviolet and infrared regions.
(4) Chemical stability: Sapphire glass has excellent chemical stability and strong corrosion resistance.
(5) Thermal stability: Sapphire glass has excellent thermal stability and can withstand drastic temperature changes.
The application of Sapphire crystal glass:
Due to its excellent performance, sapphire glass is widely used in the following areas:
(1) Optical field: As window materials, lenses, prisms, etc., applied in laser, infrared, ultraviolet and other fields.
(2) In the field of electronics, it is used as an insulation material, heat sink, etc., in semiconductor devices, LEDs, etc.
(3) Aerospace field: As a material with high temperature resistance, wear resistance, and good light transmittance, it is applied to windows of spacecraft, solar panels, etc.
