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φ7_8_9mm Sapphire Glass Plates - 2000°C Heat Resistant, Mohs 9 Hardness, Laser/Optical Use

φ7_8_9mm Sapphire Glass Plates - 2000°C Heat Resistant, Mohs 9 Hardness, Laser/Optical Use

Precio habitual $11.18 USD
Precio habitual $13.42 USD Precio de oferta $11.18 USD
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Product Name: Custom Sapphire Glass Plates (Synthetic Sapphire/Al₂O₃)

Key Features

  • Super Hardness: Mohs 9 hardness (second only to diamond), extreme scratch resistance.

  • Thermal Stability: Melting point 2040℃, boiling point 3000℃, operational range -200℃~1800℃.

  • Broad Optical Transmission: 185nm~5000nm (UV to far-IR), refractive index 1.76-1.77.

  • Chemical Inertness: Resists acids/alkalis, density 3.98 g/cm³, fracture strength 780 MPa.

  • Custom Processing: Diameter 3-200mm, thickness 0.2-30mm (±0.05mm tolerance), grind/polish/bevel/drilling.

Technical Specifications

Property Value/Description
Material Synthetic Sapphire (Al₂O₃)
Crystal Orientation C-plane
Thermal Conductivity 10 W/m·K
Thermal Expansion 7.5 × 10⁻⁶/℃
Electrical Conductivity Non-conductive

Applications

  • Laser & Optics: Laser windows, IR lenses, spectrometer optics (high transmission + thermal stability).

  • Industrial Sensors: High-temperature viewports, pressure sensor covers (impact-resistant).

  • Aerospace: Detector windows, submersible viewports (explosion-proof + multi-spectral).

  • Semiconductor & Medical: Wafer substrates, endoscope lenses (bio-inert + ultra-flat).

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