Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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The Effect of SiC Powder Size at Reaction Bonded SiC Composite Fabricated by a Molten Si Infiltration Method

용융 Si 침윤법에 의해 제조된 반응소결 탄화규소 복합체에서 SiC 입자 크기의 영향

  • Yun, Sung-Ho (Materials Science & Technology Research Division, Korea Institute of Science and Technology) ;
  • Cho, Kyung-Sun (Materials Science & Technology Research Division, Korea Institute of Science and Technology) ;
  • Tan, Phang Nhun (Materials Science & Technology Research Division, Korea Institute of Science and Technology) ;
  • Cheong, Hun (Materials Science & Technology Research Division, Korea Institute of Science and Technology) ;
  • Kim, Young-Do (Department Materials Science and Engineering, Hanyang University) ;
  • Park, Sang-Whang (Materials Science & Technology Research Division, Korea Institute of Science and Technology)
  • 윤성호 (한국과학기술연구원 재료기술연구본부) ;
  • 조경선 (한국과학기술연구원 재료기술연구본부) ;
  • ;
  • 정훈 (한국과학기술연구원 재료기술연구본부) ;
  • 김영도 (한양대학교 신소재공학과) ;
  • 박상환 (한국과학기술연구원 재료기술연구본부)
  • Published : 2008.08.31
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Abstract

Reaction bonded silicon carbide(RBSC) composite for heat-exchanger was fabricated by molten Si infiltration method. The raw materials with variable particle sizes were used in this experience. The finer the particle size in sintered silicon carbide was the more increasing 3-point bending strength and fracture toughness. As the adaptable particle sizes had been occupied interstice arising from packing sample, the mechanical properties were increased. In the PCS1-1 sample, the 3-point bending strength and fracture toughness were 323MPa and $4.9\;MPa{\cdot}m^{1/2}$, respectively.

Keywords

References

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