化学的共沈法による（Ｓｒ・Ｂａ）‐Ｌａ‐Ｃｏ系Ｍ型フェライト微粒子の磁気特性

• 山元 洋

  明治大学理工学部

• 尾崎 康亮

  明治大学理工学部

書誌事項

タイトル別名

• Magnetic Properties of the M-Type Ferrite Fine Particles of the (Sr Ba)-La-Co System Prepared by Controlling the Chemical Coprecipitation Method.
• カガクテキ キョウチンホウ ニ ヨル Sr Ba La Coケイ Mガタ フェライト ビリュウシ ノ ジキ トクセイ

抄録

(Sr⋅Ba)-La-Co M-type ferrite fine particles were prepared by the chemical coprecipitation and subsequent heat-treatment method. The chemical reagents used for the experiment were FeCl₃⋅6H₂O, BaCl₂⋅6H₂O, SrCl₂.6H₂O, LaCl₃⋅7H₂O, and CoCl₂.6H₂O. The chemical coprecipitation process was applied to the samples having the formula. {(SrO)₁-x⋅(BaO)x⋅n/2(Fe₂O₃)}_100-Y-Z(La₂O₃)_Y(CoO)_Z (n=6.0-12.0, x=0.0-1.0, y=1.0-10.0, z=1.0-10.0). The solution containing Sr²⁺, Ba²⁺, Fe³⁺, La³⁺, and Cot²⁺ was poured into solution of NaOH (pH=13.0). The precipitated products were boiled for 2h and they were carefully washed with water and dried. The obtained fine particles were heated at 950 to 1100°C for 2h in air to obtain the single phase of (Sr⋅Ba)-La-Co M-type ferrite fine particles. The best magnetic properties were observed for the sample with the composition of {(SrO)_0.8⋅(BaO)_0.2⋅3.5(Fe₂O₃)} _88.0 (La₂O₃)_6.0(CoO)_6.0, and magnetic properties were as follows: σ_s= 84.8 × 10^-6 Wb⋅m/kg (67.5 emu/g), σ_r=42.8 × 10^-6 Wb⋅m/kg (34.1 emu/g), H_cJ=476.6 kA/m (5.98 kOe) and Tc=452.6°C.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 49 (6), 496-502, 2002

  一般社団法人 粉体粉末冶金協会

キーワード

• chemical coprecipitation
• (Sr⋅Ba)-La-Co System
• M-type ferrite
• fine particles
• magnetic proprties

詳細情報

• CRID: 1390001206309520896
• NII論文ID: 10008833487
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.49.496
• COI: 1:CAS:528:DC%2BD38XlsVygt7s%3D
• ISSN: 18809014
• ISSN: 05328799
• ISSN: http://id.crossref.org/issn/05328799
• NDL書誌ID: 6190611
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6190611
• 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