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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.12
- 수록면
- 400 - 404 (5page)
이용수
초록· 키워드
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Grain boundary diffusion technique with DyH₃ nanoparticles was applied to fabricate Dy-less sintered Nd-Fe-B permanent magnets with high coercivity. The magnetic properties and microstructure of magnets were systematically studied. The coercivity and remanence of grain boundary diffusion magnet were improved by 60% and reduced by 7% compared with those of the original magnet, respectively. Meanwhile, both the remanence temperature coefficient (α) and the coercivity temperature coefficient (β) of the magnets were improved after diffusion treatment. Investigation shows that Dy is preferentially enriched as (Nd, Dy)₂Fe<SUB>14</SUB>B phase in the surface region of the Nd₂Fe<SUB>14</SUB>B matrix grains indicated by the remarkable enhancement of the magneto-crystalline anisotropy field of the magnet. As a result, the magnet diffused with a small amount of Dy nanoparticles possesses enhanced coercivity without remarkably sacrificing its magnetization.
목차
1. Introduction
2. Experiments
3. Results and Discussion
4. Conclusions
References
참고문헌 (10)
참고문헌 신청
1. [학술지(정기간행물)] - M. Sagawa / 1984 / / J. Appl. Phys 55 : 2083 ~
2. [학술지(정기간행물)] - N. C. Koon / 1985 / / J. Appl. Phys 57 : 4091 ~
3. [학술지(정기간행물)] - S. Hirosawa / 1986 / / J. Appl. Phys 59 : 873 ~
4. [학술지(정기간행물)] - J. J. Croat / 1984 / / J. Appl. Phys 55 : 2078 ~
5. [학술지(정기간행물)] - A. S. Lileev / 1996 / / J. Magn. Magn. Mater 157 : 373 ~
2. [학술지(정기간행물)] - N. C. Koon / 1985 / / J. Appl. Phys 57 : 4091 ~
3. [학술지(정기간행물)] - S. Hirosawa / 1986 / / J. Appl. Phys 59 : 873 ~
4. [학술지(정기간행물)] - J. J. Croat / 1984 / / J. Appl. Phys 55 : 2078 ~
5. [학술지(정기간행물)] - A. S. Lileev / 1996 / / J. Magn. Magn. Mater 157 : 373 ~
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UCI(KEPA) : I410-ECN-0101-2014-420-003419551