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Magnetic Properties and Sintering Behavior of (Nd,Dy)-Fe-B Permanent Magnet by Spark Plasma Sintering

방전 플라즈마 소결을 이용한 (Nd,Dy)-Fe-B 영구자석의 자성 특성 및 소결 거동

  • Song, Sun-Yong (Division of Materials Science and Engineering, Hanyang University) ;
  • Kim, Jin-Woo (Division of Materials Science and Engineering, Hanyang University) ;
  • Kim, Se-Hoon (Division of Materials Science and Engineering, Hanyang University) ;
  • Kim, Young-Do (Division of Materials Science and Engineering, Hanyang University)
  • 송선용 (한양대학교 신소재공학과) ;
  • 김진우 (한양대학교 신소재공학과) ;
  • 김세훈 (한양대학교 신소재공학과) ;
  • 김영도 (한양대학교 신소재공학과)
  • Received : 2012.01.20
  • Accepted : 2012.02.15
  • Published : 2012.04.28

Abstract

Magnetic properties and the microstructures of magnets prepared by spark plasma sintering were investigated in order to enhance magnetic properties by grain size control. Nd-Fe-B magnets were fabricated by the spark plasma sintering under 30 MPa at various temperatures. The grain size was effectively controlled by the spark plasma sintering and it was possible to make Nd-Fe-B magnets with grain size of 5.9 ${\mu}m$.

Keywords

References

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