The Glass Related Proerties Of The Sibor Oxiddation Protective Coacitng On Molybdenum Alloys

The SIBOR (Si-1Ob-2C) oxidation protective coating was applied onto molybdenum and molybdenum - 3 wt% zirconia samples by APS (= Atmospheric Plasma Spraying) with a subsequent heat treatment. Then the coated samples were submitted to ramp oxidation tests with heating rates of 10C / hour up to a temperature of 1450. This procedure stimulates the heating up of a glass melting tank where SIBOR coated parts are most frequently used. Some of the samples which could be oxidised without defect were then immersed in various molten glasses to determine the dissolution rate of SIBOR substrate system. This stimulates the situation where the glass melting tank is is filled and operated with molten glass.