Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Fabrication of Nanostructured MoSi2-TaSi2 Composite by High-Frequency Induction Heating and its Mechanical Properties

고주파유도 가열에 의한 나노구조 MoSi2-TaSi2 복합재료 제조 및 기계적 특성

  • Ko, In-Yong (Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University) ;
  • Park, Na-Ra (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)
  • 고인용 (전북대학교 신소재공학부 신소재개발 연구센터) ;
  • 박나라 (전북대학교 신소재공학부 신소재개발 연구센터) ;
  • 손인진 (전북대학교 신소재공학부 신소재개발 연구센터)
  • Received : 2012.01.03
  • Published : 2012.05.25
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Abstract

Nanopowders of Mo, Ta and Si were made by high-energy ball milling. A dense nanostructured $MoSi_2-TaSi_2$ composite was sintered by the high-frequency induction heated combustion method within 2 minutes from mechanically activated powder of Mo, Ta and Si. A highly dense $MoSi_2-TaSi_2$ composite was produced under simultaneous application of a 80 MPa pressure and the induced current. Mechanical properties and microstucture were investigated. The hardness and fracture toughness of the $MoSi_2-TaSi_2$ composite were $1200kg/mm^2$ and $3.5MPa.m^{1/2}$, respectively. The mechanical properties were higher than those of monolithic $MoSi_2$.

Keywords

Acknowledgement

Supported by : 한국연구재단, 한국에너지기술평가원(KETEP)

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