电子元件与材料2018，Vol.37Issue(1)：51-56,6.DOI:10.14106/j.cnki.1001-2028.2018.01.010
FeSiCr/SiO2软磁复合材料的制备及磁性能研究
Preparation and magnetic properties of FeSiCr/SiO2 soft magnetic composites
摘要
Abstract
With PVP as coupling agent and TEOS as precursor,a flocculent amorphous silica can be successfully coated on the surface of the FeSiCr soft magnetic alloy powder through sol-gel method. The FeSiCr/SiO2 soft magnetic composites with low loss at high frequency were prepared by subjecting the coated powderto compression molding and annealing heat treatment. Thephase, composition and surface microstructure were characterized with XRD, SEM, FTIR and XPS. The resistivity and magnetic properties were characterized withfour-probe resistivity meter, impedancemeter and B-H analyzer. The results show that after the coating treatment, the resistivity increases significantly. Also, the power loss at high frequency drops and the quality factor improves. As the TEOS addition increases,the effect of the coating and the performance of the material perform better first and then deteriorate. The soft magnetic composites get the best comprehensive performance when the addition amountof TEOS is 12mL.关键词
FeSiCr软磁合金/正硅酸乙酯/电阻率/磁导率/功率损耗/品质因数Key words
FeSiCr soft magnetic alloy/TEOS/resistivity/magnetic permeability/power loss/quality factor分类
信息技术与安全科学引用本文复制引用
任劲松,李勃,王进,庞新峰,郭海..FeSiCr/SiO2软磁复合材料的制备及磁性能研究[J].电子元件与材料,2018,37(1):51-56,6.基金项目
深圳市基础研究学科布局项目(JCYJ20150827165038323,JCYJ20160301154309393) （JCYJ20150827165038323,JCYJ20160301154309393）
国家重点研发计划项目(2017YFB0406300) （2017YFB0406300）
