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LECO for Empowering Results
Schott Sapphire Optical Window
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: Sapphire, as one of the hardest, most durable and scratch resistant materials, offers a broad transmission range from UV to mid infrared wavelengths (250 – 5000 nm). It is able to withstand extreme environmental conditions and temperature changes. SCHOTT offers sapphire windows in different supply forms, dimensions, and in customized processing stages.Material:
  • Extreme hardness & high mechanical strength (withstands extreme environmental conditions)
  • Excellent thermal conductivity/heat resistance
  • High transmittance (UV to IR)
  • Low dn/dT
  • High electrical resistance (10e14 Ohm-cm)
  • High dielectric constant (9.39 from 1.0 MHz to 8.5 GHz)
  • Infrared applications (e. g. radiometry, guidance, gas analysis, medicine, safety and security)
  • High-pressure and shock-loading applications (e.g. chamber or heater windows in chemical process equipment)
  • Optical applications (e.g. optical components from UV to IR)
  • Scratchproof sapphire watch glasses
  • SCHOTT offers sapphire material in optical quality
  • Customized characteristics concerning dimensions and shapes (round, square, and more, diameters up to 300 mm)
  • Polished surface and customized coating for different applications
  • Best Practice in sapphire processing due to long term experiences from handling optical materials
  • Usage of most advanced equipment and state-of-the-art metrology for manufacturing and quality control

Information provided by SCHOTT.

Available Properties
  • Density
  • Hardness, Knoop
  • Hardness, Mohs
  • Tensile Strength at Break
  • Modulus of Elasticity
  • Flexural Strength
  • Flexural Modulus
  • Compressive Modulus
  • Bulk Modulus
  • Poissons Ratio
  • Shear Modulus
  • Volume Resistivity
  • Volume Resistivity
  • Volume Resistivity
  • Dielectric Constant, E perpendicular to c-axis
  • Dielectric Constant, E parallel to c-axis
  • Dielectric Strength
  • Dissipation Factor
  • CTE, linear
  • Specific Heat Capacity
  • Thermal Conductivity
  • Melting Point
Property Data

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Manufacturer Notes:
Schott Glas Mainz

Category Notes

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Elmet Technologies
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