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タイトル: Co系非晶質磁性薄帯における高周波透磁率の改善
その他のタイトル: Improvement of High Frequency Permeability in Co-Based Amorphous Magnetic Ribbons
著者: 小笠原, 宏 / 福永, 博俊 / 古賀, 浩二 / 太田, 幸彦 / 掛橋, 英典
著者(別表記) : Ogasawara, Hiroshi / Fukunaga, Hirotoshi / Koga, Koji / Ota, Yukihiko / Kakehashi, Hidenori
発行日: 1992年 1月
出版者: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
引用: 長崎大学工学部研究報告, 22(38), pp.25-32; 1992
抄録: Improvement of high frequency magnetic properties was tried with success for Co-based amorphous ribbons. Process of the improvement is as follows. First, control of domain structure was examined and it was found that field annealing under magnetic field applied in the transverse direction of ribbon creates a ladder-like domain structure. This domain structure improves permeability and magnetic loss in the frequency range larger than 1 MHz. Insulation between ribbons results in further improvement in permeability and magnetic loss. Although reduction of ribbon thickness does not cause remarkable improvement in high frequency magnetic properties when ribbons are not insulated each other, it increases permeability and decreases magnetic loss remarkably when ribbons are insulated. The maximum permeability of 1000 at 10 MHz was obtained for 6. 8μm thick domaincontrolled ribbons with insulation. This value is about tow times as large as that conventional Mn-Zn ferrites.
URI: http://hdl.handle.net/10069/24362
ISSN: 02860902
資料タイプ: Departmental Bulletin Paper
原稿種類: publisher
出現コレクション:第22巻 第38号

引用URI : http://hdl.handle.net/10069/24362



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