メカニカルアロイングによるＮｄ‐Ｆｅ‐Ｂ合金の作製

• 齋藤 哲治

  千葉工業大学金属工学科

書誌事項

タイトル別名

• Production of Nd-Fe-B alloys by mechanical alloying.
• メカニカル アロイング ニヨル Nd Fe B ゴウキン ノ サクセイ

抄録

Elemental neodymium, iron, and boron powder mixtures were mechanically alloyed in argon, hydrogen and nitrogen atmospheres. The resultant powders and those annealed at various temperatures were examined by X-ray diffraction, optical microscopy, and vibrating sample magnetometer. It was found that these powder mixtures absorbed hydrogen and nitrogen during the mechanical alloying. Heat treatment of the mechanically alloyed powders prepared in hydrogen atmosphere resulted in desorption of hydrogen gas. The resultant powders consisted of Nd₂Fe₁₄B ferromagnetic crystallites and showed a high coercivity value. On the other hand, heat treatment of the mechanically alloyed powders prepared in nitrogen atmosphere did not result in desorption of nitrogen gas. The resultant powders consisted of iron and neodymium nitrides and showed a coercivity as low as that of the powder mixtures. The Nd-Fe-B powders prepared by mechanical alloying in hydrogen atmosphere were magnetically isotropic.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 45 (7), 692-696, 1998

  一般社団法人 粉体粉末冶金協会

キーワード

• Mechanical alloying
• Nd-Fe-B alloys
• Hydrogen absorption

詳細情報

• CRID: 1390001206309172608
• NII論文ID: 10002052508
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.45.692
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 4535715
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4535715
• 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