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    SAPPHIRE

    SAPPHIRE

    Basic properties

    High mechanical strength
    High thermal stability
    High heat transmission
    Chemically inert
    Very high electrical insulation
    Very high hardness
    Very good wear resistance
    Low friction coefficient
    High temperature resistance
    Good optical properties
    Good resistance to acids
    UV transparent, infrared and visible radiation.

    Applications

    Semi-conductor wafers
    Watch windows
    Electronical applications
    Measuring tools.
    Optical prisms and lenses
    Pistons