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

被引：54
|
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
收藏
页码：442 / 446
页数：5
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