【摘要】 通过溶胶凝胶法,在碳纤维表面均匀包覆了一层厚度约为1μm的钡铁氧体(BaFe12O19)。采用SEM、FTIR、XRD、XPS等技术对碳纤维/钡铁氧体复合材料的组成、结构、性能进行了表征和分析。利用8mm波雷达装置测试了碳纤维、碳纤维/钡铁氧体复合材料的毫米波衰减性能。实验结果表明:由于碳纤维/钡铁氧体复合材料兼具电损耗和磁损耗吸收,其8mm波衰减性能明显优于单纯的碳纤维。更多还原

【Abstract】 Carbon fibers(CFs) have been coated with uniform barium ferrite(BaFe12O19) particles in coating layer thickness about 1μm using sol-gel technique.The composition,structure and properties of CFs/barium ferrite composite were characterized by SEM,FTIR,XRD and XPS techniques.The 8 millimeter wave(MMW) attenuation performances of CFs and CFs/barium ferrite composite were investigated by 8 MMW radar measurement device.The results show that the 8 MMW attenuation properties of CFs/barium ferrite composite are batter than CFs because of electric and magnetic absorption for millimeter wave.更多还原