High saturation magnetic flux density of Novel nanocrystalline core annealed under magnetic field

Kwon, Seoyeon; Kim, Sumin; Yim, Haein; Kang, Ki Hoon; Yoon, Chong Seung

doi:10.1016/j.jallcom.2020.154136

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High saturation magnetic flux density of Novel nanocrystalline core annealed under magnetic field

Kwon, Seoyeon;
Kim, Sumin;
Yim, Haein;
Kang, Ki Hoon;
Yoon, Chong Seung

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30

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30

초록

In the present study, the magnetic and microstructural properties were investigated of Fe-based nano-crystalline soft magnetic alloy with the composition of Fe80Si7B9Nb3Cu1 fabricated by the melt-spinning method. The annealing under varying transverse magnetic field was applied to induce the uniform distribution of alpha-Fe nanocrystals. The lowest core loss (P-cv) was 124.0 mW/cm(3) achieved with the specimen annealed at 560 degrees C. Furthermore, the core annealed at 560 degrees C showed the B-s as high as 1.57 T which is significantly higher than that of conventional FINEMET core (B-s = 1.23 T). The combination of high Bs with excellent magnetic properties makes this nanocrystalline alloy a promising candidate for the application in high frequency (f) region.

키워드

Amorphous metals; Nanocrystalline metals; Alloy design; Magnetic properties; Heat treatment; Rapid solidification; HIGH B-S; FE-ZR-B; FREQUENCY-DEPENDENCE; ALLOYS; CRYSTALLIZATION; PERMEABILITY; COERCIVITY; ADDITIONS; FINEMET; RIBBONS

제목: High saturation magnetic flux density of Novel nanocrystalline core annealed under magnetic field

저자: Kwon, Seoyeon; Kim, Sumin; Yim, Haein; Kang, Ki Hoon; Yoon, Chong Seung

DOI: 10.1016/j.jallcom.2020.154136

발행일: 2020-06

유형: Article

저널명: Journal of Alloys and Compounds

권: 826

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