粒子形状の異なる電解鉄粉からなる圧粉磁心の電気特性と磁気特性に関する検討

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: 2024/06/01

タイトル(英語): Study on Electrical and Magnetic Properties of Toroidal Cores Consisted of Electrolytic Iron Particles with Different Particle Shapes

著者名: 児玉　雄大（東北大学大学院工学研究科），Nguyen　Phuong（東北大学大学院工学研究科），宮崎　孝道（東北大学工学部），室賀　翔（東北大学大学院工学研究科），遠藤　恭（東北大学大学院工学研究科／東北大学先端スピントロニクス研究開発センター）

著者名(英語): Yudai Kodama (Graduate School of Engineering, Tohoku University), Phuong Nguyen (Graduate School of Engineering, Tohoku University), Takamichi Miyazaki (Faculty of Engineering, Tohoku University), Sho Muroga (Graduate School of Engineering, Tohoku University), Yasushi Endo (Graduate School of Engineering, Tohoku University/Center for Science and Innovation in Spintronics, Tohoku University)

キーワード: 磁性コア，磁気損失，軟磁性材料，電解鉄粉　　magnetic cores，magnetic losses，soft magnetic material，electrolytic iron powder

要約(英語): The electrical and magnetic properties of the core composed of Electrolytic iron particles with different shapes (needle shape, flakey shape, and spherical shape) were investigated. In the frequency range below several tens kHz which the hysteresis loss is mainly dominant, the core loss became smaller in the order of the flakey particles, needle particles, and spherical particles. On the other hand, in the frequency range between several hundred kHz to several MHz which the eddy current loss is mainly dominant, the core loss of the flakey particles was the smallest of all particles. These results demonstrate that cross-sectional shape and area of particle in core play one of the important roles in the reduction of core loss.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.144 No.6 （2024） 特集：磁性材料の高周波特性活用技術動向と展望

本誌掲載ページ: 222-227 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/144/6/144_222/_article/-char/ja/