Sapphire Windows

Extreme Hardness & Wear Resistance: Mohs hardness of 9, second only to diamond. This makes it highly resistant to scratching, abrasion, and erosion from sand or debris.

Broad Transmission Range: Good transmission from the ultraviolet (~0.15 μm) to the mid-infrared (~5.5 μm), covering UV, visible, and IR bands.

Excellent Mechanical Strength: High compressive strength, enabling it to withstand extreme pressure loads and severe shock impact.

Outstanding Chemical Inertness: Resistant to acid and alkali corrosion, insoluble in water, with excellent chemical stability for long-term operation in corrosive environments.

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Sapphire window is an optical window manufactured from single-crystal alpha-alumina (α-Al₂O₃). It is not the gemstone but an exceptionally high-performance engineering material. Its most prominent features are its extreme surface hardness and broad transmission range, making it the material of choice for protecting sensitive components in the most demanding and hostile environments. It is often hailed as "transparent armor."