Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Densification of Reaction Bonded TiC Composite by Infiltration of Liquid Phase Ni/Si/Co

액상 Ni/Si/Co 침투에 의한 반응결합 TiC 복합체의 치밀화

  • Han, In-Sub (Energy Materials Research Team, Korea Institute of Energy Research) ;
  • Woo, Sang-Kuk (Energy Materials Research Team, Korea Institute of Energy Research) ;
  • Bai, Kang (Energy Materials Research Team, Korea Institute of Energy Research) ;
  • Hong, Ki-Suk (Energy Materials Research Team, Korea Institute of Energy Research) ;
  • Seo, Doo-Won (Energy Materials Research Team, Korea Institute of Energy Research) ;
  • Chung, Yoon-Jung (Dept. of Inorganic Materials Engineering, Myong Ji University)
  • 한인섭 (한국에너지기술연구소 에너지재료연구팀) ;
  • 우상국 (한국에너지기술연구소 에너지재료연구팀) ;
  • 배강 (한국에너지기술연구소 에너지재료연구팀) ;
  • 홍기석 (한국에너지기술연구소 에너지재료연구팀) ;
  • 서두원 (한국에너지기술연구소 에너지재료연구팀) ;
  • 정윤중 (명지대학교 무기재료공학과)
  • Published : 1998.10.01
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Abstract

The reaction-bonded TiC-Ni/Si/Co composites were prepared by the melt infiltration of Co, Si, and Ni me-tal into the TiC preforms. The miocrostructure reaction composition and mechanical properties were in-vestigated. In the case of the melt infiltrated with Co and Ni TiC grain shape was changed from angular to spherical shape with the average grain size of ∼5$\mu\textrm{m}$. In the case of the melt infiltrated with Co/Si or Ni/Si, Si was reacted with TiC particles and formed SiC particles. The bending strength of both specimens which have atomic ratio of 3 were 710 MPa and 515 MPa respectively. In the case of the melt infiltrated with Ni/Si/Co,. nonstoichiometric TiC was formed and its bending strength decreased to 420 MPa.

Keywords

References

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