Unrivaled Hardness and Ruggedness:

• Sapphire has a Mohs Hardness of 9, making it the second hardest material after diamond.
• Extremely resistant to scratches and abrasions, ensuring clear optical apertures even under attack from sand/grit.
• Ideal for applications involving splattering abrasive particles, such as drilling viewport windows, protective laser processing windows, and gun sights.

Thin and High-Pressure Resistant:

• Due to firm internal covalent bonding, sapphire windows can be manufactured thinner without fracture compared to dielectric materials.
• Capable of withstanding high pressure, making them suitable for aviation and deepwater contexts.

High-Temperature Tolerance:

• Sapphire has a working temperature limit of up to 1600℃ and a melting point of 2000℃.
• High thermal conduction provides a unique advantage in handling high-temperature situations compared to other optical materials.
• Great options for high-temperature plasma chambers, combustion chambers, etc.

Solid Chemical Inertia:

• Sapphire exhibits chemical inertia to common acids/alkalines, with the exception of hot caustic salts.
• Outperforms other materials in coping with corrosive chemicals and erosive atmospheres.
• Suitable for applications in pharmaceuticals, medicines, and chemical facilities.

Broad Spectral Transmission:

• Sapphire windows offer a broad spectral transmission range of 150nm-5500nm.
• Compared to N-BK7 and UV Fused Silica, sapphire excels with better UV functions, broader IR transmission, and less IR absorption.
• Ideal for critical optical operations in multi-spectrum applications.

Applications: Optical Applications, Protective Applications, Extreme Environments, Chemical and Pharmaceutical Industries, etc.