Improvement of soft magnetic properties of FeSiBPNb amorphous powder cores by addition of FeSi powder
Improvement of soft magnetic properties of FeSiBPNb amorphous powder cores by addition of FeSi powder
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添加FeSi粉改善FeSiBPNb非晶磁粉芯软磁性能
DOI：
10.1016/j.jallcom.2019.02.301
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发表时间：
2019
影响因子：
6.2
通讯作者：
Dong Yaqiang
中科院分区：
文献类型：
--
作者：
Chang Chuntao;Guo Junjiang;Li Qiang;Zhou Shouming;Liu Min;Dong Yaqiang
本文系统地研究了体积分数为0-40%的FeSi粉对FeSiBPNb非晶磁粉芯软磁性能的影响。结果表明，在非晶磁粉芯中掺入10%的FeSi粉，经适当的热处理后，该磁粉芯具有上级直流偏磁性能好、磁导率恒定、高频范围内铁损低、软磁性能优良等特点。当外场增加到100 Oe时，本发明的非晶磁芯的直流偏置特性仅下降20%。同时，它还表现出高磁导率60在10 MHz和低铁损159 W/kg在Bm = 0.1 T和f = 50 kHz。本文制备的铁基非晶磁粉芯具有良好的上级直流偏磁性能，具有广泛的工业应用前景。
The effect of FeSi powder with volume fraction of 0–40% on the soft magnetic properties of the FeSiBPNb amorphous powder cores has been systematically investigated in this study. The results shows that the amorphous magnetic powder core mixed with 10% FeSi powders in volume fraction exhibits superior DC-bias properties, constant permeability, low core loss up to a higher frequency range, and excellent soft magnetic properties after appropriate heating treatment. The DC-bias properties of the present amorphous magnetic cores decrease by only 20% as the external field increases to 100 Oe. Meanwhile, it also exhibits a high permeability of 60 at 10 MHz and a low core loss of 159 W/kg atBm= 0.1 T andf= 50 kHz. The present Fe-based amorphous magnetic powder cores mixed FeSi powders with superior DC-bias properties are a potential candidate for a variety of industrial applications.