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Effect of Na ions in plating baths on coercivity of electroplated Fe-Pt film-magnets


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タイトル: Effect of Na ions in plating baths on coercivity of electroplated Fe-Pt film-magnets
著者: Yanai, T. / Honda, J. / Hamamura, R. / Yamada, H. / Fujita, N. / Takashima, K. / Nakano, M. / Fukunaga, H.
発行日: 2018年 7月 5日
出版者: Elsevier B.V.
引用: Journal of Alloys and Compounds, 752, pp.133-136; 2018
抄録: Fe50Pt50 thick-films were electroplated on a Ta substrate using a direct current, and we evaluated the effect of Na ion concentration in plating baths on the magnetic properties of the annealed films. With increasing NaCl content from 2 to 30 g/L, the coercivity of the annealed Fe50Pt50 films increased from 700 kA/m to approximately 900 kA/m. For obtaining further experimental evidence for the increase in the coercivity, we employed trisodium citrate instead of NaCl as an additive in the plating bath. Consequently, as the addition of the trisodium citrate as well as NaCl increased the coercivity, we concluded that a plating bath with high Na ion concentration is effective to obtain the Fe-Pt thick-films with high coercivity.
キーワード: Electroplating / Fe-Pt / Film magnet / Hard magnetic material / Na ion concentration / pH
URI: http://hdl.handle.net/10069/38420
ISSN: 09258388
DOI: 10.1016/j.jallcom.2018.04.126
権利: © 2018 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
資料タイプ: Journal Article
原稿種類: author
出現コレクション:060 学術雑誌論文

引用URI : http://hdl.handle.net/10069/38420

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