Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Low-temperature Synthesis of (TiC+Al2O3) Reinforced Al Matrix Composite Based on Self-combustion Reaction

자발연소반응을 이용한 (TiC+Al2O3)/Al 복합재료의 저온합성

  • Lee, Jung-Moo (Structural Materials Division, Korea Institute of Materials Science) ;
  • Kim, Su-Hyeon (Structural Materials Division, Korea Institute of Materials Science) ;
  • Cho, Young-Hee (Structural Materials Division, Korea Institute of Materials Science) ;
  • Kim, Je-Woo (Department of Material Science and Engineering, Korea University) ;
  • Lee, Jae-Chul (Department of Material Science and Engineering, Korea University)
  • 이정무 (한국기계연구원 부설 재료연구소 구조재료연구본부) ;
  • 김수현 (한국기계연구원 부설 재료연구소 구조재료연구본부) ;
  • 조영희 (한국기계연구원 부설 재료연구소 구조재료연구본부) ;
  • 김제우 (고려대학교 신소재공학부) ;
  • 이재철 (고려대학교 신소재공학부)
  • Received : 2011.07.28
  • Published : 2011.12.25
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Abstract

The formation of TiC and $Al_2O_3$ particles based on the self-combustion reaction of the $Al-TiO_2-C-CuO$ system in an Al alloy melt was investigated. With an adequate amount of CuO in the system, a spontaneous reaction occurred within the Al alloy melt at $850^{\circ}C$ and thereafter was self-maintained, producing an Al matrix composite reinforced with thermodynamically stable TiC and $Al_2O_3$ particles. TiC and $Al_2O_3$ particles contributed to a considerable increase in the strength and stiffness, demonstrating the feasibility of this method as a practical application for structural parts.

Keywords

Acknowledgement

Supported by : 지식경제부

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