Fabrication of FeSiBPNb amorphous powder cores with high DC-bias and excellent soft magnetic properties
Fabrication of FeSiBPNb amorphous powder cores with high DC-bias and excellent soft magnetic properties
复制标题
具有高直流偏压和优异软磁性能的 FeSiBPNb 非晶磁粉芯的制造
DOI：
10.1016/j.jmmm.2015.10.069
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发表时间：
2016-03-01
影响因子：
2.7
通讯作者：
Li, Run-Wei
中科院分区：
文献类型：
--
作者：
Guo, Junjiang;Dong, Yaqiang;Li, Run-Wei
Fe基非晶磁性合金粉末，其成分为（Fe 0.76Si 0.09B 0.1P 0.05）（99）Nb-1的水雾化制备，然后，将直径小于75 μ m的非晶合金粉末与不同体积的绝缘和粘结材料混合，在室温下以2200 MPa的压制压力进行模压，温度非晶磁芯在适当的热处理后表现出上级直流偏置性能和优异的软磁性能。当外场增加到100 Oe时，非晶磁芯的直流偏置性能仅下降15%，同时，在1 MHz时磁导率高达56，在B-m = 0.1T，f = 100 kHz时磁芯损耗为451 W/kg。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。(C)2015 Elsevier B. V.版权所有。
Fe-based amorphous magnetic alloy powders with a composition of (Fe0.76Si0.09B0.1P0.05)(99)Nb-1 were first prepared by water atomization, and then amorphous magnetic powder cores were produced from a mixture of the amorphous alloy powders with diameters of below 75 pm and different volume of insulation and bonding materials by mold compacting with a compact pressure of 2200 MPa at room temperature. The amorphous magnetic cores exhibit superior DC-bias properties and excellent soft magnetic properties after appropriate heating treatment. The DC-bias properties of the present amorphous magnetic cores just decrease 15% as the external field increases to 100 Oe. Meanwhile, it also exhibits a high permeability of 56 at 1 MHz and a low core loss of 451 W/kg at B-m = 0.1 T and f = 100 kHz. The present Fe-based amorphous magnetic powder cores with superior DC-bias properties are a potential candidate for a variety of industrial applications. (C) 2015 Elsevier B.V. All rights reserved.