Hysteresis and Domain Behaviors Analysis of High Purity Fe-(5, 6) wt% Si Alloys

Zhe Lei, Takuro Horiuchi, Iwao Sasaki, Chikara Kaido, Horibe Yochi, Satoshi Hata, Toshifumi Ogawa, Hidenori Era

研究成果: ジャーナルへの寄稿Conference article

抄録

We investigated the improvement in magnetic properties of high-purity Fe-(5, 6) wt% Si formed by cold crucible levitation melting. The results showed that Fe-6 wt% Si alloy has a smaller coercivity than Fe-5 wt% Si. The hysteresis loss of both alloys increases linearly and slightly with maximum magnetization, and increases significantly after a certain maximum magnetization. Additionally, demagnetized domain structure and domain wall motion in both samples was studied by means of Lorentz microscopy. The results indicated that the domain wall motion of Fe-6 wt% Si can be activated in lower external fields and displaces more rapidly than Fe-5 wt% Si. Moreover, the displacement of domain walls that penetrate symmetrical grain boundaries and dislocations in Fe-6 wt% Si was analyzed. The boundaries and dislocations have no pinning effect on domain wall motion.

元の言語英語
ページ(範囲)695-702
ページ数8
ジャーナルPhysics Procedia
75
DOI
出版物ステータス出版済み - 1 1 2015
イベント20th International Conference on Magnetism, ICM 2015 - Barcelona, スペイン
継続期間: 7 5 20157 10 2015

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domain wall
purity
hysteresis
levitation melting
magnetization
crucibles
coercivity
grain boundaries
magnetic properties
microscopy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Hysteresis and Domain Behaviors Analysis of High Purity Fe-(5, 6) wt% Si Alloys. / Lei, Zhe; Horiuchi, Takuro; Sasaki, Iwao; Kaido, Chikara; Yochi, Horibe; Hata, Satoshi; Ogawa, Toshifumi; Era, Hidenori.

:: Physics Procedia, 巻 75, 01.01.2015, p. 695-702.

研究成果: ジャーナルへの寄稿Conference article

Lei, Z, Horiuchi, T, Sasaki, I, Kaido, C, Yochi, H, Hata, S, Ogawa, T & Era, H 2015, 'Hysteresis and Domain Behaviors Analysis of High Purity Fe-(5, 6) wt% Si Alloys', Physics Procedia, 巻. 75, pp. 695-702. https://doi.org/10.1016/j.phpro.2015.12.090
Lei, Zhe ; Horiuchi, Takuro ; Sasaki, Iwao ; Kaido, Chikara ; Yochi, Horibe ; Hata, Satoshi ; Ogawa, Toshifumi ; Era, Hidenori. / Hysteresis and Domain Behaviors Analysis of High Purity Fe-(5, 6) wt% Si Alloys. :: Physics Procedia. 2015 ; 巻 75. pp. 695-702.
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AU - Lei, Zhe

AU - Horiuchi, Takuro

AU - Sasaki, Iwao

AU - Kaido, Chikara

AU - Yochi, Horibe

AU - Hata, Satoshi

AU - Ogawa, Toshifumi

AU - Era, Hidenori

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N2 - We investigated the improvement in magnetic properties of high-purity Fe-(5, 6) wt% Si formed by cold crucible levitation melting. The results showed that Fe-6 wt% Si alloy has a smaller coercivity than Fe-5 wt% Si. The hysteresis loss of both alloys increases linearly and slightly with maximum magnetization, and increases significantly after a certain maximum magnetization. Additionally, demagnetized domain structure and domain wall motion in both samples was studied by means of Lorentz microscopy. The results indicated that the domain wall motion of Fe-6 wt% Si can be activated in lower external fields and displaces more rapidly than Fe-5 wt% Si. Moreover, the displacement of domain walls that penetrate symmetrical grain boundaries and dislocations in Fe-6 wt% Si was analyzed. The boundaries and dislocations have no pinning effect on domain wall motion.

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