新型毫米波干扰材料的制备与性能研究

【作者】 杨莎；

【导师】 潘功配；

【作者基本信息】 南京理工大学 ， 军事化学与烟火技术， 2007， 硕士

【摘要】 本文利用毫米波反射机理，采取化学镀的制备工艺，选择PAN基碳纤维-金属镍／铜复合的技术途径，采用正交设计的实验方法，优选出了新型毫米波干扰材料的制备工艺，并在实验中制备了碳纤维表面镀覆镍／铜膜的毫米波干扰材料。对制备出的新型毫米波干扰材料进行SEM观察、镀层结合力及导电性测试，结果表明镀层镀覆致密、均匀，平均镀层厚度为2.7μm；结合力不低于0.8～0.9kg／cm，结合强度符合要求；体电阻率最高达2.52×10^-4Ω·cm，导电性良好。对其进行3mm和8mm的RCS测试，结果表明碳纤维-铜／镍金属膜复合毫米波干扰材料的3mm和8mm的RCS实测值都与理论值相接近，说明了该干扰材料对3mm和8mm都具有较强的雷达反射作用。最后通过比较分析，得出的结论是碳纤维-金属铜复合较碳纤维-金属镍复合对毫米波的反射性能更好。更多还原

【Abstract】 This paper makes use of principium of reflecting millimeter-wave, adopts the electroless preparation craft, takes PAN carbon fibre coated with cooper or nickel as technique approach, optimized selects the preparation craft of new material of interfering millimeter-wave with the help of orthogonat experiments, gives birth to material of interfering millimeter-wave which is carbon fibre to be coated with cooper or nickel in our laboratory. Through the SEM observation and testing of plating combining power and conductance about the new material of interfering millimeter-wave, the result we got is that plating which average thickness is about 2.7μm is tight and well-proportioned, plating combining power which is no less than 0.8～0.9kg/cm as is satisfied with the demanding, the maximal resistance rate may get 2.52×10^-4Ω·cm as embody its excellent conduct ability too. Through Radar Cross-Section （RCS） testing of 3mm and 8mm, the data shows that the RCS measure data of carbon fibre coated with cooper or nickel in 3mm and 8mm frequency section is close to the theory data, and this new material of interfering millimeter-wave can provide with doughty ability to reflect radar wave band both 3mm and 8mm. Finally, with comparative analysis, we can acquires the conclusion that the reflecting capability of carbon fibre coated with cooper is better than the reflecting capability of carbon fibre coated with nickel.更多还原