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Processing and microwave absorbing behavior of iron magnetic nano-wire array based on aluminum plate

CHEN Kang-hua,FAN Ling-qiang,LI Jin-lei,PENG Wei-cai,HUANG Lan-ping,SONG Min(The Key Laboratory of Research Institute of Powder Metallurgy,Central South University,Changsha 410083,China)  
The iron magnetic nano-wire arrays were prepared by electrodepositing iron in porous anodic alumina membrane on aluminum plate in Fe~(2+) aqueous solution.Their microwave absorbing behavior of the arrays was measured.The arrays with a thickness of only several tens micron showed the maximum reflection loss of-6.5dB.The microstructure of the porous anodic alumina membrane on aluminum plate can be changed by grit-blasting the aluminum plate before anodizing.The arrays on the grit-blasted aluminum plate showed better microwave absorbing behavior,has a reflection loss over-2dB within 8~18GHz frequency band.
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