Synthesis and microwave absorbing mechanism of two-layer microwave absorbers containing Li_(0.35)Zn_(0.3)Fe_(2.35)O_4 micro-belts and nickel-coated carbon fibers

摘要

The Li_(0.35)Zn_(0.3)Fe_(2.35)O_4 micro-belts were prepared by cotton template method. The nickel-coated carbon fibers were obtained by electroless plating method. The formation mechanism of the ferrite micro-belt was studied. The microwave absorption properties of the Li_(0.35)Zn_(0.3)Fe_(2.35)O_4 micro-beltsickel-coated carbon fibers composites were investigated in the frequency range of 30-6000 MHz. The absorbers of the Li_(0.35)Zn_(0.3)Fe_(2.35)O_4 micro-beltsickel-coated carbon fibers composites have much better microwave absorption properties than the nickel-coated carbon fibers absorbers, and the microwave absorption properties of the composites are influenced by the thickness of the absorber.