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The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Development of Large-scale Ni-Al Alloy Fabrication Process at Low Temperature

대용량 저온 Ni-Al 합금 분말 제조 공정 개발

  • LEE, MIN JAE (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • KANG, MIN GOO (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • JANG, SEONG-CHEOL (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • HAM, HYUNG CHUL (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • AHN, JOONG WOO (Department of Interdisciplinary ECO Science, Woonjung Green Campus, Sungshin University) ;
  • NAM, SUK WOO (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • YOON, SUNG PIL (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • HAN, JONGHEE (Fuel Cell Research Center, Korea Institute of Science and Technology)
  • 이민재 (한국과학기술연구원 연료전지연구센터) ;
  • 강민구 (한국과학기술연구원 연료전지연구센터) ;
  • 장성철 (한국과학기술연구원 연료전지연구센터) ;
  • 함형철 (한국과학기술연구원 연료전지연구센터) ;
  • 안중우 (성신여자대학교 운정그린캠퍼스 청정융합과학과) ;
  • 남석우 (한국과학기술연구원 연료전지연구센터) ;
  • 윤성필 (한국과학기술연구원 연료전지연구센터) ;
  • 한종희 (한국과학기술연구원 연료전지연구센터)
  • Received : 2017.12.12
  • Accepted : 2018.02.28
  • Published : 2018.02.28
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Abstract

In this study, the kg-class Ni-Al alloy fabrication process at low temperature was developed from the physical mixture of Ni and Al powders. The AlCl3 as an activator was used to reduce the temperature of alloy synthesis below the melting temperature of Ni and Al elements (<$500^{\circ}C$). Mixed phase of Ni3Al intermetallic and Ni-Al solid-solution were identified in the XRD pattern analysis. Furthermore, from the analysis of SEM and particle size analyzer, we found that the particle size of synthesized alloy powders was not changed compared to the initial size of Ni particle after the formation of alloy powder at $500^{\circ}C$. In the creep test, the anode (which was fabricated by the prepared Ni-Al alloy powders in this study) displayed the enhanced creep resistance compared to the conventional anode.

Keywords

References

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