夹芯型吸波结构耐老化性能研究

何翔,李永清, 朱锡, 陈柯蒙,朱礼宝

Fiber Reinforced Plastics/Composites(2018)

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Abstract
选取紫外辐照、湿热及盐雾等典型海洋环境因素,对设计的夹芯型吸波结构开展加速老化实验,对比考核夹芯型吸波结构与吸波贴片的耐老化性能.结果表明:紫外老化15d后,夹芯型吸波结构面层Q-GFRP的介电常数降幅最大,导致其有效带宽向高频方向削减达0.41 GHz;盐雾老化30 d后,吸波贴片的氧化锈蚀最严重,致使其吸收峰值和有效带宽较老化前分别下降达-6.59 dB,削减达2.40 GHz;得益于Q-GFRP的保护,夹芯型吸波结构的耐老化性能明显优于吸波贴片,且经加速老化处理后,仍可满足水面舰艇在X波段、Ku波段的雷达隐身需求.
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