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

被引：23
|
作者：
Kwon, Seoyeon [1 ]
Kim, Sumin [1 ]
Yim, Haein [1 ]
Kang, Ki Hoon [2 ]
Yoon, Chong Seung [2 ]
机构：
[1] Sookmyung Womens Univ, Dept Phys, Seoul 04310, South Korea
[2] Hanyang Univ, Dept Mat Sci & Engn, Seoul 04763, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 826卷
关键词：
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;
D O I：
10.1016/j.jallcom.2020.154136
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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. (C) 2020 Elsevier B.V. All rights reserved.
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页数：7
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