Study on Dynamic Attenuation Performance and Effect Factors of Expanded Graphite in 3mm and 8mm Waveband

In accordance with the practical application of expanded graphite in MMW passive countermeasures technology, the attenuation performance of expanded graphite in 3mm and 8mm waveband is studied by dynamic test method. Under the same conditions, the attenuation performance of expanded graphite in 8mm wave is superior to that in 3ram wave. The results show that the dynamic attenuation of graphite intercalation compound with the weight of lOg, size of 6001xm by instantaneous expansion agent are 14.54dB and 18.27 dB in 3mm and 8mm waveband respectively. Meanwhile, the effect factors which includ type, particle size, expansion method and concentration of expanded graphite on 3mm and 8mm wave dynamic attenuation performance are analyzed and discussed.