Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
권호 표지

Fabrication of 4.25 Co0.53Fe0.47-Al2O3 Composite by High FrequencyInduction Heated Combustion Synthesis and Sintering

펄스 전류 활성 연소합성과 소결에 의한 4.25 Co0.53Fe0.47-Al2O3 복합재료제조

  • Lee, Dong-Mok (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University) ;
  • Jo, Kwang-Myoung (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University) ;
  • Shon, In-Jin (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University)
  • 이동목 (전북대학교 신소재공학부 신소재개발 연구센터) ;
  • 조광명 (전북대학교 신소재공학부 신소재개발 연구센터) ;
  • 손인진 (전북대학교 신소재공학부 신소재개발 연구센터)
  • Received : 2009.03.03
  • Published : 2009.06.25
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Abstract

Dense $4.25Co_{0.53}Fe_{0.47}-Al_{2}O_{3}$ composite was simultaneously synthesized and consolidated by pulsed current activated combustion method within 2 min from mechanically activated powders. Consolidation was accomplished under the combined effects of a pulsed current and mechanical pressure. Dense $4.25Co_{0.53}Fe_{0.47}-Al_{2}O_{3}$ with relative density of up to 96% was produced under simultaneous application of 80 MPa pressure and the pulsed current. Fracture toughness and hardness of the composite are $6MPa{\cdot}m^{1/2}$ and $570kg/mm^{2}$ respectively.

Keywords

Acknowledgement

Grant : 전략금속 산업원료화 기술개발

Supported by : 한국지질자원

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