磁性材料　　Ｓｒフェライト粉とその成形体の磁気特性に及ぽすメカノフュージョン処理の影響

• 沖本 邦郎

  摂南大学

• 黒田 智孝

  摂南大学大学院工学研究科

• 細川 誠一

  住友特殊金属(株)

• 豊田 幸夫

  住友特殊金属(株)

書誌事項

タイトル別名

• Influence of Milling Treatment by Mechanofusion Apparatus on Magnetic Properties of Sr-Ferrite Powder and the Compacts.
• Sr フェライトフン ト ソノ セイケイタイ ノ ジキ トクセイ ニ オヨボス メカノフュージョン ショリ ノ エイキョウ

抄録

To investigate effects of shear stress and shear strain on the magnetic properties of Sr-ferrite powder, the powder was milled by a mechanofusion (MF) apparatus, and its magnetic characteristics were studied. Coercive force of the MF-milled powder was decreased with milling time, and it reached the constant value of 140 kA⋅m^-1 as milling time was longer than 30 min. Reduction of the coercive force of the milled powder was found to slightly improve degree of powder particle alignment under applied magnetic fields. M-type ferrite phase of the original Sr-ferrite powder remains unchanged after the MF-milling treatment. The mean particle size of the powder was increased by a MF-milling treatment longer than 30 min due to aggregation of the powders. As a result, the optimum MF-milling time was in the range from 15 min to 30 min under the experimental conditions of this study.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 49 (8), 744-748, 2002

  一般社団法人 粉体粉末冶金協会

キーワード

• Mechanofusion
• angmill
• Sr-ferrite powder
• coercive force
• degree of alignment

詳細情報

• CRID: 1390001206309157248
• NII論文ID: 10009579895
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.49.744
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 6273595
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6273595
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可