Sapphire crystal is a high-performance synthetic single-crystal material that plays an important role in advanced technology fields due to its unique physical and chemical properties. Produced using advanced edge-defined film-fed growth (EFG) techniques, sapphire crystals possess a perfect lattice structure and extremely high purity, maintaining excellent optical transmission across a broad spectral range from deep ultraviolet to mid-infrared (200–5500 nm). The most remarkable feature of sapphire is its combination of exceptional hardness (Mohs hardness 9) and superior optical performance. With a thermal conductivity of up to 40 W/(m·K) and a thermal expansion coefficient as low as 5.3 × 10⁻⁶/K, sapphire crystals can withstand the harshest operating environments.

In terms of applications, sapphire crystal serves as a core material in multiple high-tech industries thanks to its comprehensive advantages. It is the ideal choice for high-power laser windows and spacecraft observation windows, and is widely used as carrier wafers and chamber viewports in semiconductor manufacturing equipment. In the defense sector, sapphire crystals are applied in missile domes and armored protection materials, while in consumer electronics they are the preferred material for high-end smartphone camera lens covers. With outstanding radiation resistance and chemical stability, sapphire also maintains reliable performance in specialized environments such as nuclear applications and deep-sea exploration.。

Our sapphire crystal products undergo rigorous quality control and can be customized according to customer requirements in terms of crystallographic orientation, dimensions, and surface finish. They are widely used in optoelectronics, semiconductors, defense, and consumer electronics, earning global recognition for their reliable performance and exceptional quality. Our professional technical team provides comprehensive support, from material selection to application development, ensuring customers receive the best solutions.

Notes: For optimal performance, store and operate sapphire crystals at 25 °C with 40%–60% relative humidity. If the crystal surface becomes contaminated, gently clean it with >99% alcohol and lint-free lens tissue. Avoid rough fabrics, water, or abrasive cleaners to prevent damage to the coating.