2019年5月
Experimental Confirmation of Grain Boundary Magnetism in Fe–Si and Fe–Sn Alloys by TEM-EELS
Materials Transactions
- ,
- ,
- 巻
- 60
- 号
- 5
- 開始ページ
- 636
- 終了ページ
- 641
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.2320/matertrans.MB201803
We measured the local magnetic moments at grain boundaries in Fe–Si and Fe–Sn alloys by electron energy loss spectroscopy with a transmission electron microscope and evaluated the relation between the grain boundary magnetism and grain boundary segregation in Fe–Si and Fe–Sn alloys. We found that the local magnetic moments at the random boundaries in these alloys were remarkably reduced in comparison with those in pure Fe, whereas there was no considerable change at the Σ5 grain boundary and low-angle boundary. The variation of the local magnetic moments at impurity-segregated grain boundaries was explained by the competition between magnetovolume effect and hybridizations of electrons. It was found that the grain boundary character remarkably affects this hybridization. The decrease in the magnetic moments at random grain boundaries was more pronounced in the Fe–Sn alloy than in the Fe–Si alloy.
- リンク情報
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- DOI
- https://doi.org/10.2320/matertrans.MB201803
- 共同研究・競争的資金等の研究課題
- 「第二世代」粒界工学へのブレークスルーのための学術基盤の強化
- Scopus
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- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85065242369&origin=inward
- ID情報
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- DOI : 10.2320/matertrans.MB201803
- ISSN : 1345-9678
- SCOPUS ID : 85065242369