宇航材料工艺2011，Vol.41Issue(4)：11-14,4.
三种纳米碳材料吸波涂层设计及性能
Design and Microwave Absorbing Properties of Carbon Nano-Materials Single-Layer Microwave Absorbers
摘要
Abstract
In this paper, the microwave absorption properties of three different types of carbon nano-materials such as U carbon, carbon nanotube and carbon black have been studied at the frequency band of 8 to 18 GHz. The complex permittivity of carbon nano-materials/paraffin composite with different weight fractions were measured at the frequency band of 8 to 18 GHz. The results show that the real and imaginary of the complex permittivity of the composites were increased with filler weight and the increasing rates of the real and imaginary part with respect to the filler weight were all different. These different rates have great effect on the thickness in the designing the single-layer microwave absorbers. The match thickness of coating and the weight of filler were obtained by the Cole-Cole plot. When 20% mass fraction carbon nanotubes were used with coating thickness of 1.6 mm, the reflection loss is superior to -10 dB at 11.2 to IS GHz and the maximum reflection loss can reach -29.6 dB.关键词
纳米碳材料/介电损耗/反射率/吸波性能Key words
Carbon nano-materials/ Dielectric loss/ Reflectivity/ Microwave absorbing property引用本文复制引用
张泽洋,刘祥萱,吴友朋,郭磊..三种纳米碳材料吸波涂层设计及性能[J].宇航材料工艺,2011,41(4):11-14,4.
