碳纤维织物铜银复合镀覆及其3毫米波RCS特性

Cu-Ag Plating Carbon Fiber Fabric and its Radar Cross Section Speciality in 3mm Wave Band

为制备一种新型毫米波无源干扰材料,采用化学复合镀覆技术在碳纤维织物表面沉积了铜银薄膜。并对复合镀层的微观形貌、导电性能及毫米波雷达散射截面(RCS,Radar cross section)性能进行了测试。结果表明:该化学镀工艺所得铜银复合镀覆碳纤维织物镀覆均匀、光泽性好,有较强的导电性能。RCS值随着金属镀覆碳纤维织物导电性能的增强而增大,铜银复合镀覆碳纤维织物的RCS值为其理论计算值的92.3%,是一种有效的毫米波干扰材料。

The Cu-Ag coating was deposited on the surfaee of carbon fiber fabric by eleetroless plating process to make a new milli- meter wave passive countermeasure materials. The surface microcosmic appearance,resistances and the Radar cross section（RCS） values of Cu-Ag deposited carbon fiber fabric were measured. Results show that Cu-Ag deposited carbon fiber fabric has better uniformlty,luster,adhesion and conducting ability. The RCS values increase with the increasing of conducting ability of metal deposited carbon fiber fabric and the RCS value of Cu-Ag deposited carbon fiber fabric is 92.3% of the caculated value. The Cu-Ag deposited carbon fiber fabric would be an effieient materials to interfere millimeter wave.