針状バリウムフェライト塗布型垂直磁気記録媒体の電磁変換特性

• 柿崎 浩一

  埼玉大学大学院理工学研究科

• 佐野 洋之

  埼玉大学大学院理工学研究科

• 藤田 実

  埼玉大学大学院理工学研究科

• 平塚 信之

  埼玉大学大学院理工学研究科

書誌事項

タイトル別名

• Recording Characteristics of Acicular Barium Ferrite Particulate Medium with Perpendicular Magnetic Anisotropy.
• シンジョウ バリウム フェライト トフガタ スイチョク ジキ キロク バイタイ

抄録

Acicular barium ferrite particles in which the doping Co²⁺ ions and Ti⁴⁺ ions were substituted for Fe³⁺ ions have been prepared by the sintering method. The acicular BaCo_0.7Ti_0.7Fe_10.6O₁₉ particles which had coercivity of about 1 kÖe were mixed with a binder, then the resulting mixture was coated on a PET film under a magnetic field of 8 kÖe applied vertically to the surface of the film. The recording characteristics of the acicular barium ferrite magnetic tapes were measured by using commercially available open reel tape deck.<BR>The output waveform of the acicular barium ferrite magnetic tapes showed that the tapes had the perpendicular magnetic anisotropy. However, the low packing density of the particles and the rough surface resulted in the low value of the signal output in the high frequency. Therefore, we attempted to improve the dispersion quality and the spacing loss. The signal output of the improved acicular barium ferrite magnetic tape was about 2 times as large as that of the previously prepared tape.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 40 (9), 871-874, 1993

  一般社団法人 粉体粉末冶金協会

キーワード

• Materials Chemistry
• Metals and Alloys
• Industrial and Manufacturing Engineering
• Mechanical Engineering

詳細情報

• CRID: 1390001206308513536
• NII論文ID: 130000819358
• NII論文ID: 10003343444
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.40.871
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 3837268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3837268
• 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