Abstract
The oxidation behaviour of a slip cast, yttria-doped, sintered reaction-bonded silicon nitride after “flash oxidation’ was investigated. It was found that both the static oxidation resistance and flexural stress rupture life (creep deformation) were improved at 1000° C in air compared to those of the same material without flash oxidation. Stress rupture data at high temperatures (1000 to 1200° C) are presented to indicate applied stress levels for oxidation-dependent and independent failures.
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