目前,鲜见关于锶铁氧体化学镀Ni-Co合金吸波特性的报道,且关于吸波材料特性的研究集中于6～18 GHz波段,未有对0～6 GHz波段的报道.自制了SrFe12O19粉体,采用铜氨溶液及银氨溶液对其敏化活化后化学镀Ni-Co合金,并对银氨溶液敏化活化制备的试样进行热处理.采用X射线衍射仪、能谱仪及透射电镜分析复合材料的结构、成分及形貌;采用振动样品磁强计测试了其磁性能;采用网络分析仪分析其吸波性能.结果表明:化学镀后,SrF12O19表面已成功镀覆上了较均匀的Ni-Co合金镀层,银氨溶液敏化活化后的化学镀Ni-Co合金磁性能及吸波性能优于铜氨溶液敏化活化的;银氨溶液敏化活化制备的复合材料于420℃热处理1h后,饱和磁化强度(Ma)增加至123.55 (A·m2)/kg,比纯SrF12O19增加了71.96 (A·m2)/kg,0～6 GHz波段的吸波性能大幅提升,最大吸收值在5 982.0 MHz处达-7.75 dB.
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