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Possible Strategies for Microstructure Control of Liquid-Phase-Sintered Silicon Carbide Ceramics

Chun, Yong-Seong   (Engineering Ceramics Laboratory, Department of Materials Science and Engineering, The University of SeoulUU0000710  ); Kim, Young-Wook   (Engineering Ceramics Laboratory, Department of Materials Science and Engineering, The University of SeoulUU0000710  );
  • 초록

    Keys to the attainment of tailored properties in SiC ceramics are microstructure control and judicious selection of the sintering additives. In this study, three different strategies for controlling microstructure of liquid-phase-sintered SiC ceramics (LPS-SiC) have been suggested: control of the initial $\alpha-SiC$ content in the starting powder, a seeding technique, and a post-sintering heat treatment. The strategies suggested offer substantial flexibility for producing toughened SiC ceramics whereby grain size, grain size distribution, and aspect ratio can be effectively controlled. The present results suggest that the proposed strategies are suitable for the manufacture of toughened SiC ceramics with improved toughness.


  • 주제어

    Silicon carbide .   Microstructure .   Liquid-phase-sintering .   Processing.  

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  • 이 논문을 인용한 문헌 (4)

    1. 2006. "" 한국세라믹학회지 = Journal of the Korean Ceramic Society, 43(3): 152~155     
    2. 2006. "" 한국세라믹학회지 = Journal of the Korean Ceramic Society, 43(6): 327~332     
    3. 2007. "" 한국세라믹학회지 = Journal of the Korean Ceramic Society, 44(4): 189~193     
    4. 2007. "" 한국세라믹학회지 = Journal of the Korean Ceramic Society, 44(7): 349~353     

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