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​​Sapphire Blank 118mm×74mm×8mm High Hardness for Infrared Windows​​

sapphire glass
August 29, 2025
Category Connection: Sapphire Parts
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Sapphire blanks/substrates refer to square or circular plate-like materials obtained by orienting, cutting, and rough grinding large-sized sapphire boules. They have not yet undergone final precision polishing (CMP) or patterning processes and serve as intermediate semi-finished products for manufacturing various sapphire end products, such as wafers, optical windows, and cover plates. The core material is α-aluminum oxide (α-Al₂O₃) single crystal with a regular lattice structure.
Tags:
#sapphire tube #sapphire bearings #sapphire windows
Brief: Discover the high-performance Sapphire Blank 118mm×74mm×8mm, designed for infrared windows with exceptional hardness and optical clarity. Ideal for semiconductor, military, and industrial applications.
Related Product Features:
  • Extreme hardness and wear resistance with a Mohs hardness of 9, second only to diamond.
  • Excellent optical performance with high transmittance from ultraviolet to infrared wavelengths (0.15-5.5 μm).
  • Outstanding physical and chemical stability, resistant to high temperatures (melting point of 2053°C) and strong chemicals.
  • Good electrical insulation and stable dielectric properties, making it an excellent insulator.
  • High purity and low defect density, ensuring no contamination in process environments.
  • Versatile applications in LED manufacturing, consumer electronics, military optics, and industrial uses.
  • Customizable precision machining for sapphire wafers, optical windows, and other components.
  • One-stop solution from crystal growth to precision processing, tailored to customer needs.
Faqs:
  • What is a sapphire substrate used for?
    It is primarily used as the foundational material for growing GaN-based LED chips and as protective covers in high-end consumer electronics.
  • Why is sapphire used in LED manufacturing?
    Sapphire offers excellent thermal stability, high hardness, and a lattice structure compatible with GaN, making it ideal for high-brightness LED production.
  • What are the key advantages of sapphire blanks for infrared windows?
    Sapphire blanks provide extreme hardness, high optical clarity, and resistance to harsh environments, making them perfect for infrared windows in military and industrial applications.
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