X-Ray Absorption Studies of Fe85Si2B8P4Cu1 Alloy

Masahiko Nishijima; Makoto Matsuura; Yan Zhang; Kana Takenaka; Akihiro Makino

doi:10.1109/TMAG.2013.2286425

X-Ray Absorption Studies of Fe₈₅Si₂B₈P₄Cu₁ Alloy

Masahiko Nishijima, Makoto Matsuura, Yan Zhang, Kana Takenaka, Akihiro Makino

IMR - Institute for Materials Research (institute affiliation only)

Tohoku University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The local structure around Cu in Fe₈₅Si₂B₈P₄Cu₁ (NANOMET) and Fe85Si2B12Cu1 alloys was investigated by X-ray absorption fine structure (XAFS) and analytical transmission electron microscopy (TEM). The XAFS measurements indicate that the local structure around Cu atoms for the nanocrystallized Fe₈₅Si₂B₈P₄Cu₁ alloy is a bcc-like structure, suggesting that Cu atoms occupy substitutional site of bcc-Fe or Cu atoms form bcc-type clusters in bcc-Fe nanocrystallites. The compositional TEM analysis indicates that Cu atoms distribute in both nanocrystallites and amorphous matrix. These facts suggest that Cu atoms in the Fe₈₅Si₂B₈P₄Cu₁ alloy do not form stable fcc-Cu clusters, which act as the nucleation sites in the case of Fe_73.5Si_13.5B₉Nb₃Cu₁ (FINEMET) alloy.

Original language	English
Article number	6798026
Journal	IEEE Transactions on Magnetics
Volume	50
Issue number	4
DOIs	https://doi.org/10.1109/TMAG.2013.2286425
Publication status	Published - 2014 Apr 1

Keywords

Absorption
Annealing
Atomic measurements
Iron
Nanocrystals
Soft magnetic materials

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10.1109/TMAG.2013.2286425

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title = "X-Ray Absorption Studies of Fe85Si2B8P4Cu1 Alloy",

abstract = "The local structure around Cu in Fe85Si2B8P4Cu1 (NANOMET) and Fe85Si2B12Cu1 alloys was investigated by X-ray absorption fine structure (XAFS) and analytical transmission electron microscopy (TEM). The XAFS measurements indicate that the local structure around Cu atoms for the nanocrystallized Fe85Si2B8P4Cu1 alloy is a bcc-like structure, suggesting that Cu atoms occupy substitutional site of bcc-Fe or Cu atoms form bcc-type clusters in bcc-Fe nanocrystallites. The compositional TEM analysis indicates that Cu atoms distribute in both nanocrystallites and amorphous matrix. These facts suggest that Cu atoms in the Fe85Si2B8P4Cu1 alloy do not form stable fcc-Cu clusters, which act as the nucleation sites in the case of Fe73.5Si13.5B9Nb3Cu1 (FINEMET) alloy.",

keywords = "Absorption, Annealing, Atomic measurements, Iron, Nanocrystals, Soft magnetic materials",

author = "Masahiko Nishijima and Makoto Matsuura and Yan Zhang and Kana Takenaka and Akihiro Makino",

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year = "2014",

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doi = "10.1109/TMAG.2013.2286425",

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T1 - X-Ray Absorption Studies of Fe85Si2B8P4Cu1 Alloy

AU - Nishijima, Masahiko

AU - Matsuura, Makoto

AU - Zhang, Yan

AU - Takenaka, Kana

AU - Makino, Akihiro

PY - 2014/4/1

Y1 - 2014/4/1

N2 - The local structure around Cu in Fe85Si2B8P4Cu1 (NANOMET) and Fe85Si2B12Cu1 alloys was investigated by X-ray absorption fine structure (XAFS) and analytical transmission electron microscopy (TEM). The XAFS measurements indicate that the local structure around Cu atoms for the nanocrystallized Fe85Si2B8P4Cu1 alloy is a bcc-like structure, suggesting that Cu atoms occupy substitutional site of bcc-Fe or Cu atoms form bcc-type clusters in bcc-Fe nanocrystallites. The compositional TEM analysis indicates that Cu atoms distribute in both nanocrystallites and amorphous matrix. These facts suggest that Cu atoms in the Fe85Si2B8P4Cu1 alloy do not form stable fcc-Cu clusters, which act as the nucleation sites in the case of Fe73.5Si13.5B9Nb3Cu1 (FINEMET) alloy.

AB - The local structure around Cu in Fe85Si2B8P4Cu1 (NANOMET) and Fe85Si2B12Cu1 alloys was investigated by X-ray absorption fine structure (XAFS) and analytical transmission electron microscopy (TEM). The XAFS measurements indicate that the local structure around Cu atoms for the nanocrystallized Fe85Si2B8P4Cu1 alloy is a bcc-like structure, suggesting that Cu atoms occupy substitutional site of bcc-Fe or Cu atoms form bcc-type clusters in bcc-Fe nanocrystallites. The compositional TEM analysis indicates that Cu atoms distribute in both nanocrystallites and amorphous matrix. These facts suggest that Cu atoms in the Fe85Si2B8P4Cu1 alloy do not form stable fcc-Cu clusters, which act as the nucleation sites in the case of Fe73.5Si13.5B9Nb3Cu1 (FINEMET) alloy.

KW - Absorption

KW - Annealing

KW - Atomic measurements

KW - Iron

KW - Nanocrystals

KW - Soft magnetic materials

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4

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ER -

X-Ray Absorption Studies of Fe₈₅Si₂B₈P₄Cu₁ Alloy

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