방사선산업학회지 (Journal of Radiation Industry)

한국방사선산업학회 (Korean Society of Radiation Industry)
권호 표지

마그넷 적용 세라믹 코팅 후막의 전자빔 조사 및 열 경화 방법에 따른 특성

Characterization for Ceramic-coated Magnets Using E-beam and Thermal Annealing Methods

  • 김혁종 (금오공과대학교 정보나노소재공학과) ;
  • 김희규 (금오공과대학교 정보나노소재공학과) ;
  • 강인구 (금오공과대학교 정보나노소재공학과) ;
  • 김민완 (한국원자력연구원) ;
  • 양기호 (한국원자력연구원) ;
  • 이병철 (한국원자력연구원) ;
  • 최병호 (금오공과대학교 정보나노소재공학과)
  • Kim, Hyug-Jong (School of Advanced Materials and Systems Eng., Kumoh National Institute of Technology) ;
  • Kim, Hee Gyu (School of Advanced Materials and Systems Eng., Kumoh National Institute of Technology) ;
  • Kang, In Gu (School of Advanced Materials and Systems Eng., Kumoh National Institute of Technology) ;
  • Kim, Min Wan (Korea Atomic Energy Research Institute) ;
  • Yang, Ki Ho (Korea Atomic Energy Research Institute) ;
  • Lee, Byung Cheol (Korea Atomic Energy Research Institute) ;
  • Choi, Byung-Ho (School of Advanced Materials and Systems Eng., Kumoh National Institute of Technology)
  • 투고 : 2009.01.15
  • 심사 : 2009.02.03
  • 발행 : 2009.03.31

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초록

Hard magnet was usually used by coating $SiO_2$ ceramic thick films followed by the thermal annealing process. In this work, the alternative annealing process for NdFeB magnets using e-beam sources (1~2 MeV, 50~400 kGy) was investigated. NdFeB magnets was coated with ceramic thick films using the spray method. The optimal annealing parameter for e-beam source reveals to be 1 MeV and 300 kGy. The sample prepared at 1 MeV and 300 kGy was characterized by the analysis of the surface morphology, film hardness, adhesion and chemical stability. The mechanical property of thick film, especially film hardness, is better than that of thermal annealed samples at $180^{\circ}C$. As a result, e-beam annealing process will be one of candidate and attractive heat treatment process. In future, manufacturing process will be carried out in cooperation with the magnet company.

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