Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Phase and Microstructure of SiC-AlN Ceramics Prepared by Pressureless Sintering

상압소결에 의하여 제조된 SiC-AlN 세라믹스의 상 및 미세구조

  • 최웅 (서울대학교 무기재료공학과) ;
  • 이종국 (조선대학교 재료공학과) ;
  • 조덕호 (요업기술원) ;
  • 김환 (서울대학교 무기재료공학과)
  • Published : 1995.11.01
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Abstract

Changes in phase and microstructure were investigated in the SiC-AlN ceramics prepared by pressureless sintering using yttrium aluminum garnet (YAG) as a sintering aid at 200$0^{\circ}C$ and 210$0^{\circ}C$. The SiC/AlN ratio made a remarkable difference in densification, phase relations and the morphology of grains. In the AlN-rich composition, major phase was 2H and microstructure was composed of the densified equiaxed grains irrespective of the sintering temperatures. While those sintered at 200$0^{\circ}C$ were porous with major phase being 3C, the rod-like and the equiaxed grains were coexisted when sintered at 210$0^{\circ}C$ in the SiC-rich composition.

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References

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