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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2025.3
- 수록면
- 12 - 18 (7page)
- DOI
- 10.4283/JMAG.2025.30.1.12
이용수
초록· 키워드
오류제보하기
In Nd₂Fe<sub>14</sub>B magnets the magnetic properties degrade significantly with increasing the temperature. In this paper, the effect of Co atoms substituting for Fe is investigated in the sintered magnets of Nd<sub>13.5</sub>(Fe,M)<sub>80.7-x</sub>Co<sub>x</sub>B<sub>5.8</sub>, aiming to enhance the thermal stability of magnetic properties. The remanence increases a little as the Co content is less than 9 at.%. However, the corecivity decreases monotonously with the increase of Co content, and the reduction in coercivity is greater than that of magnetocrystalline anisotropy field. While at high temperature, the stability of remanence is improved with the increase of Co content, and the decrease degree in coercivity is reduced in Nd<sub>13.5</sub>(Fe,M)<sub>75.7</sub>Co₅B<sub>5.8</sub> and Nd<sub>13.5</sub>(Fe,M)<sub>69.7</sub>Co<sub>11</sub>B<sub>5.8</sub>, which should partially be attributed to the increase of Curie temperature. By modifying the effect of minor phases and enhancing the anisotropy of grain boundary in Nd-(Fe,Co)-B magnets, both a high remanence and a high coercivity could be obtained at high temperature.
목차
1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
References
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