Progress in Nitrogen Ceramics,
HOULDSWORTH SCHOOL OF APPLIED SCIENCE LEEDS (UNITED KINGDOM) DEPT OF CERAMICS
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The past five years have been considerable progress in sintering, post-sintering processing, and microstructureproperty development in silicon nitride based ceramics. New materials such as sintered alpha-SiC and transformation-toughened zirconia have developed to the point where they provide systems designers with options other than silicon nitride based materials for high temperature, highly stressed structural applications. Successful demonstrations of a number of ceramic materials in engines and other high temperature structures are continuing to provide encouragement to the design community. What these developments would seem to point to, for the near future, is a dynamic highly competitive environment from which reliable, affordable high performance ceramics of many types will find their niche in high temperature engineering systems.
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