Magnetic properties of phosphoric acid passivated Fe-Si-B amorphous magnetic powder core

被引：7
|
作者：
Zhu, Yong [1 ]
Zhang, Cong [1 ]
Liu, Xiansong [1 ]
Kan, Xucai [1 ]
Feng, Shuangjiu [1 ]
Lv, Qingrong [1 ]
机构：
[1] Anhui Univ, Sch Mat Sci & Engn, Engn Technol Res Ctr Magnet Mat, Hefei 230601, Anhui, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2023年 / 296卷
基金：
中国国家自然科学基金;
关键词：
Soft magnets; Magnetic properties; Composites;
D O I：
10.1016/j.mseb.2023.116673
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetic properties of Fe-Si-B amorphous soft magnetic powder cores (SMCs) passivated by phosphoric acid are investigated in this work. Effects of phosphoric acid content and annealing temperature at different frequencies on permeability and magnetic loss of SMCs have been studied, too. Electronic microscope pictures and results of B-H analyzer show that the surface of Fe-Si-B SMCs is coated with a layer of dense phosphate. Experimental results show that Fe-Si-B SMCs with the best comprehensive magnetic properties (& mu;e = 23.71; Pcv = 470.6 mW & BULL;cm  3 measured at 1000 kHz, 20 mT) can be obtained by adding 0.8 wt% phosphoric acid at the annealing temperature of 480 degrees C.
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收藏
页数：8
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