Modification of NiCo/NiFe-coated carbon fibers to attenuate centimeterwave
The modification of NiCo/NiFe-coated carbon fibers is studied to improve the attenuation properties in centimeter wave band.The oxidation modification has been adopted after carbon fibers(CF) is coated with Ni-Fe or Ni-Co by electroless plating, and the prepared products are characterized by scanning electron microscope (SEM), thermogravimetric analyzer(TG), X-ray powder diffraction(XRD) and vector network analyzer.The results showed that metal nickel is still exist in Ni-Fe-CFs after annealing in air at 500℃ for lh, and the antioxidative properties of Ni-Fe coating are better.The attenuation properties of Ni-Fe-CFs are slightly better compared to the original material from 3.92GHz to 14.8 GHz.However the coated Ni-Co alloys are transformed entirely into oxides and phosphides under the same conditions.The attenuation of Ni-Co-CFs is obviously higher than the original material from 4.32GHz to 16.24 GHz, and the strongest attenuation is 6.44dB at 16GHz.
centimetre wave attenuation carbon fiber electroless plating nickel-cobalt nickel-iron oxidation
WAN Xiang REN Qingguo DONG Wenjie Li Mingyu QIAO Xiaojing
School of Mechatronical Engineering,Beijing Institute of Technology,Beijing l00081,China 11 th Team of Postgraduate Student,Instituteof Chemical Defense,Beijing 102205,China
国际会议
成都
英文
569-574
2013-09-24（万方平台首次上网日期，不代表论文的发表时间）