Fe-Si-B-P-C-Cu nanocrystalline soft magnetic powders with high Bs and low core loss

T. Takahashi; K. Yoshida; Y. Shimizu; A. D. Setyawan; M. Bito; M. Abe; A. Makino

doi:10.1063/1.4978408

Fe-Si-B-P-C-Cu nanocrystalline soft magnetic powders with high B_s and low core loss

T. Takahashi, K. Yoshida, Y. Shimizu, A. D. Setyawan, M. Bito, M. Abe, A. Makino

New Industry Creation Hatchery Center (NICHe)

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

15 Citations (Scopus)

Abstract

The magnetic properties of Fe-Si-B-P-C-Cu nanocrystalline powders were investigated. Fe-Si-B-P-C-Cu powders with a mostly amorphous structure were prepared by an atomization method. The atomized powders were annealed in inert gas atmosphere for nanocrystallization. The Fe_84.8Si_0.5B_9.4P_3.5C₁Cu_0.8 nanocrystalline powder exhibits high B_s of 1.76T, which is appreciably higher than that of conventional Fe-based amorphous powders (1.3 - 1.5 T) and close to that of Fe_3.5Si_4.5Cr (1.86T) crystalline one. The magnetic loss of toroidal core made of the Fe_84.8Si_0.5B_9.4P_3.5C₁Cu_0.8 nanocrystalline powder is also the lowest compared to that of amorphous and crystalline counterparts. This result indicates that Fe-Si-B-P-C-Cu nanocrystalline powders could contribute in efficiency-improvement as well as miniaturization of soft-magnetic cores.

Original language	English
Article number	056111
Journal	AIP Advances
Volume	7
Issue number	5
DOIs	https://doi.org/10.1063/1.4978408
Publication status	Published - 2017 May 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Fe-Si-B-P-C-Cu nanocrystalline soft magnetic powders with high Bs and low core loss",

abstract = "The magnetic properties of Fe-Si-B-P-C-Cu nanocrystalline powders were investigated. Fe-Si-B-P-C-Cu powders with a mostly amorphous structure were prepared by an atomization method. The atomized powders were annealed in inert gas atmosphere for nanocrystallization. The Fe84.8Si0.5B9.4P3.5C1Cu0.8 nanocrystalline powder exhibits high Bs of 1.76T, which is appreciably higher than that of conventional Fe-based amorphous powders (1.3 - 1.5 T) and close to that of Fe3.5Si4.5Cr (1.86T) crystalline one. The magnetic loss of toroidal core made of the Fe84.8Si0.5B9.4P3.5C1Cu0.8 nanocrystalline powder is also the lowest compared to that of amorphous and crystalline counterparts. This result indicates that Fe-Si-B-P-C-Cu nanocrystalline powders could contribute in efficiency-improvement as well as miniaturization of soft-magnetic cores.",

author = "T. Takahashi and K. Yoshida and Y. Shimizu and Setyawan, {A. D.} and M. Bito and M. Abe and A. Makino",

note = "Funding Information: This work was supported by “Tohoku Innovative Materials Technology Initiatives for Reconstruction (TIMT)” funded by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and Reconstruction Agency, Japan. The authors thank Dr. M. Nishijima for TEM observations. NANOMET{\textregistered} is a registered trademark of NEC TOKIN Corporation and Tohoku Magnet Institute Co., Ltd. Publisher Copyright: {\textcopyright} 2017 Author(s).",

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AU - Takahashi, T.

AU - Yoshida, K.

AU - Shimizu, Y.

AU - Setyawan, A. D.

AU - Bito, M.

AU - Abe, M.

AU - Makino, A.

N1 - Funding Information: This work was supported by “Tohoku Innovative Materials Technology Initiatives for Reconstruction (TIMT)” funded by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and Reconstruction Agency, Japan. The authors thank Dr. M. Nishijima for TEM observations. NANOMET® is a registered trademark of NEC TOKIN Corporation and Tohoku Magnet Institute Co., Ltd. Publisher Copyright: © 2017 Author(s).

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The magnetic properties of Fe-Si-B-P-C-Cu nanocrystalline powders were investigated. Fe-Si-B-P-C-Cu powders with a mostly amorphous structure were prepared by an atomization method. The atomized powders were annealed in inert gas atmosphere for nanocrystallization. The Fe84.8Si0.5B9.4P3.5C1Cu0.8 nanocrystalline powder exhibits high Bs of 1.76T, which is appreciably higher than that of conventional Fe-based amorphous powders (1.3 - 1.5 T) and close to that of Fe3.5Si4.5Cr (1.86T) crystalline one. The magnetic loss of toroidal core made of the Fe84.8Si0.5B9.4P3.5C1Cu0.8 nanocrystalline powder is also the lowest compared to that of amorphous and crystalline counterparts. This result indicates that Fe-Si-B-P-C-Cu nanocrystalline powders could contribute in efficiency-improvement as well as miniaturization of soft-magnetic cores.

AB - The magnetic properties of Fe-Si-B-P-C-Cu nanocrystalline powders were investigated. Fe-Si-B-P-C-Cu powders with a mostly amorphous structure were prepared by an atomization method. The atomized powders were annealed in inert gas atmosphere for nanocrystallization. The Fe84.8Si0.5B9.4P3.5C1Cu0.8 nanocrystalline powder exhibits high Bs of 1.76T, which is appreciably higher than that of conventional Fe-based amorphous powders (1.3 - 1.5 T) and close to that of Fe3.5Si4.5Cr (1.86T) crystalline one. The magnetic loss of toroidal core made of the Fe84.8Si0.5B9.4P3.5C1Cu0.8 nanocrystalline powder is also the lowest compared to that of amorphous and crystalline counterparts. This result indicates that Fe-Si-B-P-C-Cu nanocrystalline powders could contribute in efficiency-improvement as well as miniaturization of soft-magnetic cores.

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Fe-Si-B-P-C-Cu nanocrystalline soft magnetic powders with high B_s and low core loss

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