Improvement of microwave-absorbing properties of Co2Z barium ferrite composite by coating Ag nanoparticles

作者: Yongbo Zhang , Fei Xu , Guoguo Tan , Junli Zhang , Tao Wang

DOI: 10.1016/J.JALLCOM.2014.06.165

关键词: Barium ferriteElectromagnetic radiationMetalComposite materialMicrowaveReflection lossCoatingPermittivityMaterials scienceComposite numberMetallurgy

摘要: CO(2)Z barium ferrite particles with coated Ag nanoparticles were prepared to increase permittivity. The microwave-absorbing properties of the Ag-coated particle composite showed that stronger reflection loss (RL) peak and smaller absorber thickness could be achieved simultaneously compared pure same permeability but This enhanced absorption phenomenon was discussed using quarter-wave length cancellation. separated electromagnetic wave energy reflected at air-absorber (AA) interface absorber-metal plate (AM) by measuring coefficients composites without (S11-SHORT) a backed metal investigate RL enhancement. (C) 2014 Elsevier B.V. All rights reserved.

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