Novel Fe-based nanocrystalline powder cores with excellent magnetic properties produced using gas-atomized powder

被引：56

作者：

Chang, Liang ^{[1
,3
]}

Xie, Lei ^{[1
,3
]}

Liu, Min ^{[3
]}

Li, Qiang ^{[1
]}

Dong, Yaqiang ^{[3
]}

Chang, Chuntao ^{[2
,3
]}

Wang, Xin-Min ^{[3
]}

Inoue, Akihisa ^{[3
]}

机构：

[1] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Xinjiang, Peoples R China

[2] Dongguan Univ Technol, Sch Mech Engn, Dongguan 523808, Peoples R China

[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 452卷

基金：

中国国家自然科学基金;

关键词：

Nanocrystalline powder cores; Gas atomization; Excellent magnetic properties; EDDY-CURRENT LOSSES; GRAIN-STRUCTURE; PARTICLE-SIZE; ALLOY POWDER; COMPOSITES; PERMEABILITY; MICROSTRUCTURE; FERRITES; AL2O3;

D O I：

10.1016/j.jmmm.2017.12.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

FeSiBPNbCu nanocrystalline powder cores (NPCs) with excellent magnetic properties were fabricated by cold-compaction of the gas-atomized amorphous powder. Upon annealing at the optimum temperature, the NPCs showed excellent magnetic properties, including high initial permeability of 88, high frequency stability up to 1 MHz with a constant value of 85, low core loss of 265 mW/cm(3) at 100 kHz for B-m = 0.05 T, and superior DC-bias permeability of 60% at a bias field of 100 Oe. The excellent magnetic properties of the present NPCs could be attributed to the ultrafine alpha-Fe(Si) phase precipitated in the amorphous matrix and the use of gas-atomized powder coated with a uniform insulation layer. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：442 / 446

页数：5

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