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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
- 2011.6
- 수록면
- 145 - 149 (5page)
이용수
초록· 키워드
오류제보하기
The coercivity H<SUB>c</SUB> of Nd₂Fe₁₄B magnets and Nd₂Fe₁₄B/(Nd<SUB>0.7</SUB>Dy<SUB>0.3</SUB>)₂Fe₁₄B composite magnets were calculated by computer simulation based on the micromagnetic theory under assumptions that Nd₂Fe₁₄B and (Nd<SUB>0.7</SUB>Dy<SUB>0.3</SUB>)₂Fe₁₄B grains have magnetically deteriorated layers on their surfaces and diffusion of Dy from (Nd<SUB>0.7</SUB>Dy<SUB>0.3</SUB>)₂Fe₁₄B grains to Nd₂Fe₁₄B ones through the contacting boundaries recovers the magnetic anisotropy of the deteriorated layers of Nd₂Fe₁₄B grains. H<SUB>c</SUB> of Nd₂Fe₁₄B/(Nd0.7Dy0.3)₂Fe₁₄B composite magnets increased by the diffusion of Dy from (Nd<SUB>0.7</SUB>Dy<SUB>0.3</SUB>)₂Fe₁₄B grains to Nd₂Fe₁₄B ones and the resultant recovery of the anisotropy field of deteriorated layers of Nd₂Fe₁₄B grains. The Hc vs fraction of (Nd<SUB>0.7</SUB>Dy<SUB>0.3</SUB>)₂Fe₁₄B grains curve were convex for the magnets with the degree of alignment between 0.94 and 0.99, which suggests that the above composite magnets have larger H<SUB>c</SUB> values than the alloy-magnets with the same Dy content, and that we can save the consumption of Dy by using these composite magnets.
목차
1. Introduction
2. Simulation Method
3. Simulation Results
4. Conclusions
References
참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - D. S. Li / 2008 / / Jpn. J. Appl. Phys 47 : 7876 ~
2. [학술지(정기간행물)] - K. Hirota / 2006 / / IEEE Trans. Magn 42 : 2909 ~
3. [학술지(정기간행물)] - H. Suziki / 2009 / / J. Appl. Phys 105 : 8979 ~
4. [학술대회논문] - T. Hidaka / 2010 / / Proc. REPM’10
5. [학술지(정기간행물)] - H. Fukunaga / 2000 / / IEEE Trans. Magn 36 : 3285 ~
2. [학술지(정기간행물)] - K. Hirota / 2006 / / IEEE Trans. Magn 42 : 2909 ~
3. [학술지(정기간행물)] - H. Suziki / 2009 / / J. Appl. Phys 105 : 8979 ~
4. [학술대회논문] - T. Hidaka / 2010 / / Proc. REPM’10
5. [학술지(정기간행물)] - H. Fukunaga / 2000 / / IEEE Trans. Magn 36 : 3285 ~
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