Outlasting Mechanical Strength: Windows manufactured using sapphire are distinguished for their outstanding mechanical strength. Sapphire windows are resistant to scratches and abrasions and could withstand high pressures. The Young’s Modulus of sapphire is twice as large as the Young’s Modulus of Iron, this means sapphire windows are not prone to shape deformation even great forces are exerted. Therefore sapphire windows are often utilized in high-pressure environments like deep-water glass, or operations that confront frequent abrasions and high-speed projectiles, such as outdoor thermal camera windows, phone screens, laser drilling windows, and aerospace windows.
Wide Optical Transmission: The transmission spectral range of sapphire is about 225-5500nm, extending from the ultraviolet zone to the infrared region. Compared with UV Fused Silica and N-BK7 windows, Sapphire windows have a wider transparent range, allowing uses in UV, VIS, and IR spectra or multi-spectrum transmission.
Beneficial Thermal Properties: Sapphire windows feature high thermal conduction and are able to work without being affected under high temperatures with a melting point of 2030℃. Therefore sapphire windows are also a suitable candidate for high-power laser windows, plasma chambers, and combustion chambers.
Chemical Inertia: Sapphire windows are not reactive to those normal acids and alkalis, with the sole exception being hot caustics. This means sapphire windows are sustainable in corrosive environments, such as the seaside and in the field of chemicals and pharmaceuticals.