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- 학술대회자료
- 저자정보
- 발행연도
- 2021.7
- 수록면
- 112 - 112 (1page)
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SmFe<sub>12</sub>–based compounds have been considered as a good candidate for a future permanent magnet without the critical elements such as Nd or Dy [1]. One of the most challenging issues to achieve a high-performance permanent magnet is that forming an appropriate grain boundary phase is suppressed in SmFe<sub>12</sub>–based magnets [2,3]. Therefore, grain boundary effects to enhance magnetic properties such as remanence and coercivity rarely occur, and practical magnetic properties are assessed as relatively low. To overcome this, adding impurities can reinforce the performance of a permanent magnet by inducing the formation of the grain boundary phase. For example, Cu – Ga grain boundary infiltration [2] and co-sputtering of B [3] can cause the grain boundary phase formation. Especially, doping of B induces amorphous ferromagnetic grain boundary creation, which results in a significant improvement of coercivity and remanen ... 전체 초록 보기
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