磁性材料の化学　Ｉ　Ｆｅ４ＮのＨＩＰ焼結と焼結体の磁気特性

• 伊藤 滋

  東京理科大学理工学部工業化学科

• 新村 佐知子

  東京理科大学理工学部工業化学科

• 細越 隆司

  東京理科大学理工学部工業化学科

• 明石 和夫

  東京理科大学理工学部工業化学科

書誌事項

タイトル別名

• HIP Sintering and Saturation Magnetization of Fe4N.
• Fe4N ノ HIP ショウケツ ト ショウケツタイ ノ ジキ トクセイ

抄録

Since Fe₄N decomposes at 670°C, sintering of Fe₄N powder has not been performed under atmospheric pressure. In this study, Fe₄N powders have been sintered below the decomposition temperature applying hipping pressure. The sealed capsule containing Fe₄N powder was hipped at 450-550°C for 2 hours under 50-200 MPa. The decomposition of Fe₄N was confirmed at 550°C. Therefore, hipping temperature was restricted below 500°C. The maximum relative density 97% was obtained for the specimen hipped at 500°C under the maximum pressure of 200MPa. The specimen obtained at 450°C has a higher saturation magnetization than that obtained at 500°C. The maximum saturation magne-tization 182emu/g was measured for a specimen obtained at 450°C under 200 MPa. The saturation magnetization was decreased to 151 emu/g by the addition of small amount of oxygen (0.33wt%) to Fe₄N raw powder. In addition, the corrosion resistance of the hipped Fe₄N was higher than that of steel.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 43 (12), 1415-1419, 1996

  一般社団法人 粉体粉末冶金協会

キーワード

• Fe<SUB>4</SUB>N
• HIP
• Saturation magnetization
• Oxygen content
• Corrosion resistance

詳細情報

• CRID: 1390001206309060352
• NII論文ID: 10002261164
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.43.1415
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4118676
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4118676
• 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