磁性材料　　Ｃｏ添加したＦｅ系メタル微粒子の酸化安定性と反応機構

• 鉄川 弘樹

  ソニー(株)

• 目黒 政志

  ソニー(株)

• 井上 誠

  ソニー(株)

書誌事項

タイトル別名

• Oxidation Stability and Reaction Mechanism of Fe-Co Fine Particles.
• Co テンカ シタ Feケイ メタル ビリュウシ ノ サンカ アンテイセイ ト ハンノウ キコウ

抄録

The oxidation stability of acicular Fe-Co particles in the high temperature range has been investigated using the thermogravimetry method. The rate of oxidation reaction decreases with the increase of Co content in metal particles. From the analysis of the oxidation process, the reaction mechanism of Fe-Co particles can be explained by an unreacted core model with a rate controlling process of diffusion in a continuous product layer. The oxide from the iron particle at 573 K is γ-Fe₂O₃, while the oxide from the Fe-Co particle is Fe₃O₄ or CoFe₂O₄ and the production of γ-Fe₂O₃ is suppressed. Therefore it is found that the oxidation stability in the high temperature range is improved by the addition of cobalt in metal particles.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 47 (7), 748-751, 2000

  一般社団法人 粉体粉末冶金協会

キーワード

• metal particle
• oxidation stability
• reaction mechanism
• TG method
• Fe-Co particle

詳細情報

• CRID: 1390001206307408768
• NII論文ID: 10005138162
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.47.748
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 5410210
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5410210
• 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