Composition-controlled synthesis of solid-solution Fe–Ni nanoalloys and their application in screen-printed magnetic films

Kenichi Yatsugi, Toshitaka Ishizaki, Kunio Akedo, Miho Yamauchi

研究成果: ジャーナルへの寄稿記事

抄録

Screen printing is attracting attention as a method for manufacturing magnetic components such as on-chip transformers and inductors. Fe–Ni alloys, which have high saturation magnetizations and permeabilities, are suitable as magnetic materials for screen-printed high-frequency devices. Here, we demonstrate the fabrication of a screen-printed film comprising solid-solution Fe–Ni nanoalloys, which can achieve enhanced permeability and reduced eddy-current losses in high-frequency regions. The Fe–Ni nanoalloys were prepared by chemical reduction using sodium borohydride as a reducing reagent followed by hydrogen reduction. X-ray diffraction measurements, electron microscopy, and inductively coupled plasma spectroscopy revealed that well-mixed FexNi100−x nanoalloys (x = 40, 21.5, and 10) with grain sizes of ~ 10 nm were synthesized. The obtained nanoalloys showed high saturation magnetizations comparable to bulk alloys. The screen-printed film using the Fe21.5Ni78.5 nanoalloy exhibited the highest permeability of the nanoalloy films. The eddy-current loss was suppressed by the synthesis of nanoscale-grained nanoalloys. The permeability was sufficiently high for application in transformers and inductors.

元の言語英語
記事番号60
ジャーナルJournal of Nanoparticle Research
21
発行部数3
DOI
出版物ステータス出版済み - 3 1 2019

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Magnetic films
magnetic films
Permeability
Solid solutions
permeability
solid solutions
Saturation magnetization
Synthesis
Eddy currents
Eddy Currents
Transformer
inductors
synthesis
eddy currents
Chemical analysis
Magnetization
transformers
Saturation
Screen printing
Magnetic materials

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

これを引用

Composition-controlled synthesis of solid-solution Fe–Ni nanoalloys and their application in screen-printed magnetic films. / Yatsugi, Kenichi; Ishizaki, Toshitaka; Akedo, Kunio; Yamauchi, Miho.

:: Journal of Nanoparticle Research, 巻 21, 番号 3, 60, 01.03.2019.

研究成果: ジャーナルへの寄稿記事

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