Absorbing/shielding property of graphite-FeSi by mechanical milling

摘要：

　　Graphite-FeSi absorbents were fabricated by mechanical milling method.The complex permittivity and permeability were measured in frequency 1-4 GHz,and then reflection loss (RL) and shielding effectiveness (SE) were calculated.It was obtained that the graphite was bonded to the surface of FeSi by X-ray diffraction (XRD) patterns and scanning electron microscopy (SEM) images.The permittivity and permeability could be enlarged as graphite added in the milling process.It was attributed to the excellent conductivity of graphite and interactions of the two particles.The graphite-FeSi composites had a better shielding property (maximum 25.93 dB) in 1-4 GHz as well as the absorbing property at 1GHz than FeSi composites.

关键词： FeSi alloys graphite absorbing materials shielding property mechanical milling

作者: Yonggang Xu Liming Yuan Jun Cai Deyuan Zhang

作者单位: School of Mechanical Engineering and Automation,Beihang University,Beijing,China

会议类型: 国际会议

会议名称: 2013 International Conference on Energy Research and Power Engineering(2013能源研究与电力工程国际会议)(ERPE2013)

会议地点: 郑州

会议语种:英文

页码: 955-959

在线出版日期: 2013-05-24（万方平台首次上网日期，不代表论文的发表时间）