作者: Minoru Maeda , Kazuo Nakamura , Mamoru Yamada
DOI: 10.1007/BF00575420
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摘要: Five silicon nitride ceramics with various additives were evaluated for their oxidation resistance at 1300 ° C in flowing dry and wet air. In a atmosphere, the of all types Si3N4 except one proceeded two stages different reaction rates nearly following parabolic law. showed linear relationship between weight gain by water varpour content. The vapour atmosphere slightly accelerated oxidation. influence on room-temperature strength was complex, but there no observed distinguishable difference effect flexural