ホーム > 研究活動 > 解説・概説記事 > ThMn12型窒素侵入希土類磁石化合物と永久磁石化研究の最近の進展

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ThMn12型窒素侵入希土類磁石化合物と永久磁石化研究の最近の進展

電気学会論文誌A(基礎・材料・共通部門誌)Vol. 136 (2016) No. 8 P 466-471

2016年8月5日(金)

広沢 哲
http://doi.org/10.1541/ieejfms.136.466

The ThMn12-type hard magnetic compounds composed of rare earth elements (R) and 3d ferromagnetic transition metals such as Fe and their interstitially- modified compounds have been known for many years as possible candidates for development of permanent magnet materials. Being the family of compounds of the lowest rare earth contents among known R-Fe compounds, this class of materials attracts renewed interests especially after the discovery of NdFe12N that showed intrinsic magnetic parameters that surpassed those of Nd2Fe14B (Y. Hirayama, Y.K. Takahashi, S. Hirosawa and K. Hono, Scripta Materialia 95 (2015) 70). In this paper, recent topics related to this class of materials are overviewed and future perspectives are discussed.


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元素戦略拠点

触媒・電池元素戦略拠点
触媒・電池元素戦略研究拠点 (京都大学)
東工大元素戦略拠点
東工大元素戦略拠点 (東京工業大学)
構造材料元素戦略研究拠点
構造材料元素戦略研究拠点 (京都大学)
高効率モーター用磁性材料技術研究組合
高効率モーター用 磁性材料技術研究組合