논문 상세보기

HD 처리 및 열처리공정 개선에 의한 (Nd, Dy)-Fe-B 소결자석의 자기특성 향상 KCI 등재

Improvement of the Magnetic Properties of (Nd, Dy)-Fe-B Sintered Magnets by Modification of HD and Annealing Processes

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/2752
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

In an attempt to optimize the magnetic properties of (Nd, Dy)-Fe-B sintered magnets, hydrogenation and post-sintering heat treatment processes were investigated at various hydrogenation temperatures and heat treatment temperatures. The coercivity of (Nd, Dy)-Fe-B sintered magnets hydrogenated at increased to about 1.2 kOe without any detrimental effect on the remanence. Moreover, the coercivity of the magnets was enhanced further by a consecutive and step heat treatment. These results eventually leaded to the reduction of the Dy content in a high coercive (> 30 kOe) (Nd, Dy)-Fe-B sintered magnets, as much as 10%.

저자
  • 남궁석 | NamKung S.
  • 이연호 | Lee Y.H.
  • 김문갑 | Kim M.K.
  • 장태석 | Jang T.S.