Novel Fe-based nanocrystalline powder cores with excellent magnetic properties produced using gas-atomized powder
Novel Fe-based nanocrystalline powder cores with excellent magnetic properties produced using gas-atomized powder
复制标题
采用气雾化粉末生产的具有优异磁性能的新型铁基纳米晶磁粉芯
DOI：
10.1016/j.jmmm.2017.12.049
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发表时间：
2018-04-15
影响因子：
2.7
通讯作者：
Inoue, Akihisa
中科院分区：
文献类型：
--
作者：
Chang, Liang;Xie, Lei;Inoue, Akihisa
采用气体雾化非晶粉末冷压成型法制备了具有优异磁性能的FeSiBPNbCu纳米晶粉芯。在最佳温度下退火后，纳米碳管表现出优异的磁性能，包括初始磁导率高达88，频率稳定度高达1 MHz，恒定值为85，在100 kHz（B-m = 0.05T）时铁损为265 mW/cm（3），和上级直流偏置磁导率为60%，在100 Oe的偏置场。本发明的NPC的优异的磁性能可以归因于在非晶基体中沉淀的超细α-Fe（Si）相和使用气体-雾化粉末涂有均匀的绝缘层。(C)2017爱思唯尔B. V.保留所有权利。
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.