PLD法を用い作製したPr-Fe-B/Fe-Co積層型ナノコンポジット磁石膜の磁気特性ならびに微細構造に関する研究

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: 2017/07/01

タイトル(英語): Magnetic Properties and Microstructure of PLD-fabricated Pr-Fe-B/Fe-Co Multi-layered Nano-composite Film Magnets

著者名: 山下　昂洋（長崎大学），黒崎　陽（長崎大学），柳井　武志（長崎大学），福永　博俊（長崎大学），中野　正基（長崎大学）

著者名(英語): Akihiro Yamashita (Nagasaki University), Akira Kurosaki (Nagasaki University), Takeshi Yanai (Nagasaki University), Hirotoshi Fukunaga (Nagasaki University), Masaki Nakano (Nagasaki University)

キーワード: Pr-Fe-B，Fe-Co，ナノコンポジット磁石，PLD (Pulsed Laser Deposition)法，磁気特性，微細構造　　Pr-Fe-B，Fe-Co，nano-composite magnets，PLD method，magnetic properties，microstructure

要約(英語): Although we have prepared Pr-Fe-B/α-Fe multilayered nanocomposite thick-film magnets by a pulsed laser deposition (PLD) method, it was difficult to maintain the multi-layered structure through an annealing process. Namely, a transmission electron microscopy (TEM) observation of the above-mentioned sample revealed that the microstructure varied from a multilayered structure (as-deposited) to a dispersed one through the annealing process. In this study, a Fe-Co phase instead of an α-Fe one as a soft layer was adopted in this study to investigate the mechanism of destruction of the multi-layered structure. It was clarified that the origin of the destruction exists in an α-Fe phase of an as-deposited Pr-Fe-B layer. Furthermore, the (BH)max value of an obtained film magnet was approximately 115 kJ/m3.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.137 No.7 （2017） 特集：平成28年基礎・材料・共通部門大会－テーマ付きセッション：ナノ磁性体の物性と機能性－

本誌掲載ページ: 404-409 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/137/7/137_404/_article/-char/ja/