Abstract：The Fe- Si- Al powders were flattened by using stirring and ball- milling first and then annealed at different temperatures for different time. The effects of flattening and heat treatment on the powder size, morphology and phase were investigated with laser particle size analyzers, SEM and XRD. In addition, the electromagnetic parameters of the microwave absorbing materials made from the prepared Fe- Si- Al powders were studied in a range of 1 MHz- 100 MHz with a impedance analyzer. The results show that the flattening and annealing of Fe- Si- Al powders significantly increase the complex permeability of absorbing materials. The absorbing material which were made by the flattened Fe- Si- Al powders and annealing at 600 ℃ for 2 h shows a more excellent electromagnetic parameters in the range of 1 MHz- 100 MHz, the initial permeability up to 64.
收稿日期: 2016-01-13
出版日期: 2016-03-02
基金资助:国家高技术研究发展计划（863计划）
通讯作者:
刘天成
E-mail: liutiancheng@atmcn.com
引用本文:
张伟，刘天成，朱景森，李德仁，卢志超. 退火热处理对扁平状Fe- Si- Al磁粉电磁性能的影响[J]. , 2016, 23(1): 21-25.
ZHANG Wei, LIU Tian- cheng, ZHU Jing- sen, LI De- ren, LU Zhi- chao. Annealing treatment’s influence on the electromagnetic properties of flattening Fe- Si- Al powders. , 2016, 23(1): 21-25.
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2016, Vol. 23 
