Soft magnetic properties of bcc fe-m-b-cu (M=ti, nb or ta) alloys with nanoscale grain size

Kiyonori Suzuki; Akihiro Makino; Akihisa Inoue; Tsuyoshi Masumoto

doi:10.1143/JJAP.30.L1729

Soft magnetic properties of bcc fe-m-b-cu (M=ti, nb or ta) alloys with nanoscale grain size

Kiyonori Suzuki, Akihiro Makino, Akihisa Inoue, Tsuyoshi Masumoto

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

35 Citations (Scopus)

Abstract

The changes in microstructure and magnetic properties upon crystallization were investigated for melt-spun amorphous Fe-M-B-Cu (M = Ti, Nb or Ta) quaternary alloys. A mostly single bcc phase with nanoscale grain size of about 10 nm was formed by annealing the amorphous Fe-M-B-Cu alloys for 3.6 ks in the range of 750 to 950 K. The crystallization-induced bcc alloys were found to exhibit a high permeability (/¿_e) of from 10000 to 20000 at 1 kHz, combined with a high saturation magnetization (B_s) of from 1.40 to 1.55 T. These values are superior to those for amorphous Fe-Si-B alloys which are a known soft magnetic material with high B_s.

Original language	English
Pages (from-to)	L1729-L1732
Journal	Japanese Journal of Applied Physics
Volume	30
Issue number	10A
DOIs	https://doi.org/10.1143/JJAP.30.L1729
Publication status	Published - 1 Jan 1991
Externally published	Yes

Keywords

Amorphous phase
Bcc phase
Crystallization
High saturation magnetization
Nanocrystalline structure
Soft magnetic property

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10.1143/JJAP.30.L1729

Cite this

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abstract = "The changes in microstructure and magnetic properties upon crystallization were investigated for melt-spun amorphous Fe-M-B-Cu (M = Ti, Nb or Ta) quaternary alloys. A mostly single bcc phase with nanoscale grain size of about 10 nm was formed by annealing the amorphous Fe-M-B-Cu alloys for 3.6 ks in the range of 750 to 950 K. The crystallization-induced bcc alloys were found to exhibit a high permeability (/¿e) of from 10000 to 20000 at 1 kHz, combined with a high saturation magnetization (Bs) of from 1.40 to 1.55 T. These values are superior to those for amorphous Fe-Si-B alloys which are a known soft magnetic material with high Bs.",

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AU - Suzuki, Kiyonori

AU - Makino, Akihiro

AU - Inoue, Akihisa

AU - Masumoto, Tsuyoshi

PY - 1991/1/1

Y1 - 1991/1/1

N2 - The changes in microstructure and magnetic properties upon crystallization were investigated for melt-spun amorphous Fe-M-B-Cu (M = Ti, Nb or Ta) quaternary alloys. A mostly single bcc phase with nanoscale grain size of about 10 nm was formed by annealing the amorphous Fe-M-B-Cu alloys for 3.6 ks in the range of 750 to 950 K. The crystallization-induced bcc alloys were found to exhibit a high permeability (/¿e) of from 10000 to 20000 at 1 kHz, combined with a high saturation magnetization (Bs) of from 1.40 to 1.55 T. These values are superior to those for amorphous Fe-Si-B alloys which are a known soft magnetic material with high Bs.

AB - The changes in microstructure and magnetic properties upon crystallization were investigated for melt-spun amorphous Fe-M-B-Cu (M = Ti, Nb or Ta) quaternary alloys. A mostly single bcc phase with nanoscale grain size of about 10 nm was formed by annealing the amorphous Fe-M-B-Cu alloys for 3.6 ks in the range of 750 to 950 K. The crystallization-induced bcc alloys were found to exhibit a high permeability (/¿e) of from 10000 to 20000 at 1 kHz, combined with a high saturation magnetization (Bs) of from 1.40 to 1.55 T. These values are superior to those for amorphous Fe-Si-B alloys which are a known soft magnetic material with high Bs.

KW - Amorphous phase

KW - Bcc phase

KW - Crystallization

KW - High saturation magnetization

KW - Nanocrystalline structure

KW - Soft magnetic property

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JF - Japanese Journal of Applied Physics

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Soft magnetic properties of bcc fe-m-b-cu (M=ti, nb or ta) alloys with nanoscale grain size

Abstract

Keywords

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