Nd-Fe-B系合金急冷薄帯およびNd-Fe-B系ナノコンポジット合金急冷薄帯のNd-Cu合金添加による高保磁力化

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2016/08/01

タイトル(英語): Improvement in Coercivity of Nd-Fe-B Melt-spun Ribbons with the Addition of Nd-Cu Alloys

著者名: 齋藤　哲治（千葉工業大学工学部機械サイエンス学科），野崎　舜司（千葉工業大学工学部機械サイエンス学科）

著者名(英語): Tetsuji Saito (Chiba Institute of Technology), Syunji Nozaki (Chiba Institute of Technology)

キーワード: Nd-Fe-B合金，急冷凝固法，永久磁石，保磁力　　Nd-Fe-B alloys，rapid solidification processing，permanent magnets，coercivity

要約(英語): Nd15Fe77B8,Nd4Fe77.5B18.5,and R-Cu (R=Nd, Pr, Sm, Ce) eutectic alloys were produced by the melt-spinning technique. The Nd-Fe-B alloys mixed with the Nd-Cu alloy were annealed to examine the effects of the Nd-Cu alloy on the coercivity of the Nd-Fe-B alloys. The coercivity of the Nd-Fe-B alloy increased as the amount of the Nd-Cu alloy increased. The Nd15Fe77B8 alloy mixed with 30% Nd-Cu alloy exhibited an unusually high coercivity of 29.2 kOe after annealing at 873 K for 1 h. It was found that the coercivity of the Nd4Fe77.5B18.5 alloy was also increased by the addition of Nd-Cu alloys. The Nd4Fe77.5B18.5 alloy mixed with 40% Nd-Cu alloy showed a coercivity of 4.6 kOe after annealing at 923 K for 1 h.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.136 No.8 （2016） 特集：高性能永久磁石の最先端研究とその応用動向

本誌掲載ページ: 509-514 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/136/8/136_509/_article/-char/ja/