低温窒化法によるＦｅ１６Ｎ２生成反応の粒子径依存性

• 武田 隆史

  北海道大学大学院工学研究科物質化学専攻

• 久保田 浩平

  北海道大学大学院工学研究科物質化学専攻

• 吉川 信一

  北海道大学大学院工学研究科物質化学専攻

書誌事項

タイトル別名

• Particle Size Dependence of Iron on the Fe16N2 Formation by Low Temperature Nitridation
• テイオン チッカホウ ニ ヨル Fe16N2 セイセイ ハンノウ ノ リュウシケイ イゾンセイ
• Particle size dependence of iron on Fe16N2 formation by low temperature nitridation

抄録

The dependence of α-Fe particle size on the formation of Fe₁₆N₂ with giant magnetization was studied by nitriding α-Fe fine particles below 200°C with different particle size (60nm, 120nm, 300nm) derived from α-Fe₂O₃. Nitridation of the largest α-Fe particle (300nm) was difficult to obtain Fe₁₆N₂. Mixtures of Fe₁₆N₂ with unreacted α-Fe and Fe₄N were obtained by nitridation of the smaller α-Fe particles (120nm, 60nm). The nitridation process was most controllable for α-Fe particle of 120nm to obtain the most amount of Fe₁₆N₂. Magnetization was not enhanced by the formation of Fe₁₆N₂ probably due to disordering of the nitrogen introduced into Fe lattice. Monodispersed α-Fe particles could be obtained by thermal decomposition of Fe(CO)₅ in octylether. Their size could be controlled with the amount of added stabilizer in the ether. They could be nitrided to Fe₁₆N₂ in low temperature nitridation.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 53 (4), 329-333, 2006

  一般社団法人 粉体粉末冶金協会

キーワード

• giant magnetization
• iron nitride
• particle size
• Mössbauer spectroscopy
• disorder

詳細情報

• CRID: 1390282681283931136
• NII論文ID: 130000057844
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.53.329
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 7940862
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7940862
• 本文言語コード: ja
• データソース種別:
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  • NDL
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  • KAKEN
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