シナジー磁石と磁性材料　　ＳｍＦｅ７Ｎｘ＋αＦｅ系微細複合磁石の開発

• 福野 亮

  TDK(株)基礎材料研究所

• 山本 智実

  TDK(株)基礎材料研究所

• 日高 徹也

  TDK(株)基礎材料研究所

書誌事項

タイトル別名

• Development of SmFe7Nx+.ALPHA.Fe Nanocomposite Magnets.
• フンタイ フンマツ ヤキン キョウカイ ギジュツ シンポショウ ジュショウ キネン コウエン SmFe7Nx アルファ Feケイ ビサイ フクゴウ ジシャク ノ カイハツ

抄録

Nano composite magnet material consisting of hard magnetic SmFe₇N_x phase and soft magnetic α Fe phase were developed through a process of rapidly quenching method including heat treatment and nitrogenation. Well balanced magnetic performance were obtained for the alloys with the composition of (Sm₈Zr₃Fe₈₅Co₄)N₁₅. The ranges of grain sizes are 20-40nm which are enough small to create exchange coupling interaction between soft and hard magnetic grains. The ratio of α Fe phases with higher magnetization are measured approximately 20% by TEM observation. TEM-EDX study revealed that SmFe₇N_x phase have a composition of richer Sm ratio than that of 1-7stoichiometry. Magnetic properties of those powders are as follows: Br=0.97T, H_cJ=752kJ/m, (BH)_max=140kJ/m³. Bonded magnets have been fabricated with thermoelastic and thermoplastic resins.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 46 (6), 581-588, 1999

  一般社団法人 粉体粉末冶金協会

キーワード

• nanocomposite magnets
• exchange coupling
• Sm-Fe nitride
• bonded magnet
• spindle motor

詳細情報

• CRID: 1390001206308193536
• NII論文ID: 10005139517
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.46.581
• COI: 1:CAS:528:DyaK1MXksFarsb0%3D
• ISSN: 18809014
• ISSN: 05328799
• ISSN: http://id.crossref.org/issn/05328799
• NDL書誌ID: 4770176
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4770176
• 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