Microwave Absorption Characteristics of Composites Containing Carbon Black and Carbon Fibers
Microwave absorption characteristics of the composite containing parallel-arranged carbon fibers and carbon black were investigated at the frequency range of 2- 18GHz in this study. The results show that, the absorption performance is corresponding to both the carbon black and the layer-number of parallel- arranged carbon fibers. The single-layer composite with carbon black mixture and 2-layer carbon fibers has the bandwidth at 9.64GHz under -5dB and 3.86GHz under-10dB at parallel polarization. The double-layer composite at vertical polarization combined by transmission layer containing 4-layer carbon fibers and absorbing layer mixed with carbon black, the frequency range under -5dB and -10dB are 6.82GHz and 3.18GHz, respectively. The composite with double- layer structure combined by transmission layer mixed with carbon black and absorbing layer containing 4- layer parallel-arranged carbon fibers has the maximum reflection loss with the value of-31.78dB. The absorption mechanism was discussed based on the theory of electromagnetic.
microwave absorption carbon fiber carbon black parallel polarization vertical polarization
LV Xiao MO Hongsong LI Guang JIANG Jianming
College of Material Science and Engineering, Donghua University, Shanghai 200051, P. R. China College of Material Science and Engineering, Donghua University,Shanghai 200051, P. R. China
国际会议
上海
英文
562-564
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）