摘要
FeSiAl合金粉末因具有较高的磁导率、饱和磁化强度及低成本的特点,在微波吸收领域备受关注。本文总结了FeSiAl合金粉末的特点,阐述了微观结构调控、合金成分优化对其电磁性能的影响。针对片状FeSiAl合金粉末介电常数较高的问题,重点讨论了表面包覆、微氧化、复合化设计等技术手段对其微波吸收性能的调控机理。最后,展望了FeSiAl粉末未来的研究方向。
FeSiAl alloy powder is one of the ideal candidates for microwave absorbing materials due to its high permeability,high saturation magnetization and low cost.This article summarizes the characteristics of FeSiAl alloy powder,and expounds the influence of microstructure control and composition optimization on the electromagnetic properties.In view of the high permittivity of the flake FeSiAl alloy powder,the regulation mechanism of microwave absorption performance is discussed mainly by technical means such as surface coating,micro-oxidation,and compounding technique.Finally,the future research direction of FeSiAl powder is prospected.
作者
郭阳
胡黎明
GUO Yang;HU Liming(School of Electrical and Information Engineering,University of Panzhihua,Panzhihua 617000,China;292236 Troops of PLA,Zhanjiang 524000,China)
出处
《粉末冶金工业》
CAS
北大核心
2021年第5期94-98,共5页
Powder Metallurgy Industry
关键词
FeSiAl合金粉末
微观结构
表面改性
复合化
FeSiAl alloy powder
microstructure
surface modification
compounding technique
