磁性材料の化学　　配向性Ｍｎ‐Ｚｎフェライトの高周波特性

• 平塚 信之

  埼玉大学工学部機能材料工学科

• 山本 誠

  埼玉大学工学部機能材料工学科

• 柿崎 浩一

  埼玉大学工学部機能材料工学科

書誌事項

タイトル別名

• High Frequency Characteristics of Crystal Oriented Mn-Zn Ferrite.
• ハイコウセイ Mn-Zn フェライト ノ コウシュウハ トクセイ

抄録

Crystal oriented manganese zinc ferrites were made from acicular manganese zinc ferrite fine particles. The acicular manganese zinc ferrite fine particles were prepared by a conventional sintering method. The acicular fine particles had the size of the long axis of about 4μm and the aspect ratio of about 16, respectively. To orient the acicular particles magnetically, they were pressed and formed to a shape under the magnetic field of 955kA/m by wet method. The green compact was sintered at 1250°C for 14.4ks in air, then cooled in nitrogen atmosphere. The crystal orientation of the sintered body was as strong as that of the single crystal manganese zinc ferrite. Moreover, crystal oriented manganese zinc ferrite troidal cores added with SiO₂ and CaO were prepared, and then the frequency dependence of initial permeability of them were measured. The troidal core with the addition of 0.25wt%: SiO₂ and 2.95wt%: CaO had the initial permeability of 1200 at 2MHz. The high value of the initial permeability may be caused by uniaxial crystal orientation and high resistivity phase formed by the additives.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 45 (1), 86-90, 1998

  一般社団法人 粉体粉末冶金協会

キーワード

• manganese zinc ferrite
• crystal orientation
• acicular particle
• high frequency
• permeability

詳細情報

• CRID: 1390282681285887616
• NII論文ID: 10002014976
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.45.86
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4392671
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4392671
• 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