Improvement of saturation magnetic flux density in Fe-Si-B-Nb-Cu nanocomposite alloys by magnetic field annealing

被引：17

作者：

Kwon, Seoyeon ^{[1
]}

Kim, Sumin ^{[1
]}

Yin, Haein ^{[1
]}

机构：

[1] Sookmyung Womens Univ, Dept Phys, Seoul 04310, South Korea

来源：

CURRENT APPLIED PHYSICS | 2020年 / 20卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Annealing; Amorphous; Soft magnetic; Ferromagnetic; MICROSTRUCTURE; DEPENDENCE; FINEMET; CR;

D O I：

10.1016/j.cap.2019.10.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study, we investigated the effect of heat treatment on the magnetic properties of the Fe87-xSixB9Nb3Cu1 (x = 1, 3, 5, 7, 9, and 13.5) alloy system. Ribbon samples with the width of 2 mm and thickness of 20-30 mu m were synthesized by melt spinning. Among the samples, only amorphous samples were nanocrystallized by annealing between 360 and 600 degrees C. The annealed alloys tended to have improved soft magnetic characteristics, including higher saturation magnetic flux density (B-s), while maintaining high relative permeability (mu(r)), and low core loss (P-cv). A high saturation magnetic flux density of 1.51 T was obtained for the Fe78Si9B9Nb3Cu1 core sample after longitudinal magnetic field annealing at 520 degrees C. The sample had excellent soft magnetic properties as compared to the conventional value of FINEMET core (B-s = 1.23 T), which is a significant improvement as compared to the as-spun ribbons (B-s = 1.10-1.26 T).

引用

页码：37 / 42

页数：6

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