不同碳纳米材料的微波衰减性能研究  

Microwave Attenuation Performance of Different Carbon Nano-Materials

作　　者：王红霞[1] 刘代志[1] 翟为刚[1] 

机构地区：[1]第二炮兵工程学院,陕西西安710025

出　　处：《含能材料》2007年第2期148-150,154,共4页Chinese Journal of Energetic Materials

基　　金：国防预研资金资助项目(51400010504JB4705)

摘　　要：为了探索碳纳米材料在电磁波无源干扰领域中的应用,采用静态测试方法,研究了纳米碳粉、碳纳米管、纳米碳纤维七种不同结构和尺寸的碳纳米材料在8~12 GHz波段内的微波衰减性能,并对其衰减机理进行了分析。测试结果表明,纤维状碳纳米材料对微波的衰减性能好于颗粒状碳纳米材料,直径约为60 nm的纳米碳纤维对微波的衰减最显著,平均单位质量密度对应的衰减量在-2.84^-4.27 dB之间,约是纳米碳粉衰减量的10倍多。To explore the applications of carbon nano-materials in electromagnetic wave passive jamming field, the 8 - 12 GHz microwave attenuation performances of carbon nano-powder,carbon nanotubes, and carbon nanofibers were studied based on the static measuring method. The results indicate that the microwave attenuation performance of carbon nanofibers is better than that of carbon nanotubes and carbon nano-powder. The average microwave attenuation value per quality of carbon nanotibers with 60 nm diameter is between -2.84 dB and -4.27 dB, which is over 10 times of carbon nano-powder＇s. It is concluded that the attenuation performance of carbon nanofibers with diameter of 60 nm is the best of these carbon nano-materials with different structures and sizes.

关 键 词：材料科学 碳纳米材料 碳纳米管 纳米碳纤维 微波衰减 

分 类 号：TB383.1[一般工业技术—材料科学与工程]