Easy Axis Orientation of Nd-Fe-B Melt-spun Magnets Caused by Hot-rolling

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: 2012/10/01

タイトル(英語): Easy Axis Orientation of Nd-Fe-B Melt-spun Magnets Caused by Hot-rolling

著者名: Masaaki Takezawa (Department of Applied Science for Integrated System Engineering, Faculty of Engineering, Kyushu Institute of Technology), Toshio Mihara (Department of Applied Science for Integrated System Engineering, Faculty of Engineering, Kyushu Inst

著者名(英語): Masaaki Takezawa (Department of Applied Science for Integrated System Engineering, Faculty of Engineering, Kyushu Institute of Technology), Toshio Mihara (Department of Applied Science for Integrated System Engineering, Faculty of Engineering, Kyushu Institute of Technology), Yuji Morimoto (Department of Applied Science for Integrated System Engineering, Faculty of Engineering, Kyushu Institute of Technology), Jiro Yamasaki (Department of Applied Science for Integrated System Engineering, Faculty of Engineering, Kyushu Institute of Technology), Masaaki Yagi (Energy Electronics Laboratory, Sojo University)

キーワード: Nd-Fe-B，melt-spun ribbon，hot-rolling，c-axis orientation，magnetic anisotropy

要約(英語): The c-axis orientation of Nd-Fe-B melt-spun ribbons caused by hot-rolling was investigated. A small roll is added on a steel wheel near a quartz tube in such a way that melt-spun ribbons are hot-rolled immediately after quenching. X-ray diffraction patterns measured on both surfaces of the ribbons indicate that the c-axis is oriented normal to the ribbon plane. A domain pattern at the surface of the ribbons was observed with a Kerr microscope. Most of the grains exhibit maze domain configurations indicating the c-axis orientation normal to the ribbon plane. This suggests that hot-rolling promotes the c-axis orientation of Nd-Fe-B melt-spun ribbons.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.10 （2012） 特集（Ⅰ）：新機能性ナノスケール磁性材料の作製・評価 特集（Ⅱ）：イノベーションを支える最新の計測技術2012

本誌掲載ページ: 818-821 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/132/10/132_818/_article/-char/ja/