Iron-based P/M soft magnetic material for electric devices operating at high frequencies

Tomoyuki Ishimine, Toru Maeda, Haruhisa Toyoda, Kouji Mimura, Takao Nishioka, Satoshi Sugimoto

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

Recently, there has been a growing demand for soft magnetic materials with high conversion characteristics in the high-frequency range due to the trend where electric devices are being operated at higher frequencies. P/M soft magnetic materials, which were developed for such devices, utilizing iron-based powder and alloy powder. Through this work, we were able to reduce core loss and achieve remarkable magnetic characteristics in the high frequency range. Core loss, which includes hysteresis loss and eddy-current loss, is predominant in the high-frequency range. Two methods can be used to reduce eddy-current loss: using fine-grained powder, and using high-resistivity powder. However, both these present compressibility problems, with high-resistivity iron-based alloy powders such as Fe-Si being particularly poor in deformability. By studying composition of the material, we successfully developed a material that offers both high resistivity and high compressibility, reduction of core loss by more than 20% over the conventional material was achieved.

本文言語English
ホスト出版物のタイトルProgress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)
出版社Trans Tech Publications Ltd
ページ1333-1336
ページ数4
PART 2
ISBN(印刷版)0878494197, 9780878494194
DOI
出版ステータスPublished - 2007 1 1
外部発表はい
イベント2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan, Korea, Republic of
継続期間: 2006 9 242006 9 28

出版物シリーズ

名前Materials Science Forum
番号PART 2
534-536
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other2006 Powder Metallurgy World Congress and Exhibition, PM 2006
国/地域Korea, Republic of
CityBusan
Period06/9/2406/9/28

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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