In-situ hydrothermal synthesis of NiCo alloy particles@hydrophilic carbon cloth to construct corncob-like heterostructure for high-performance electromagnetic wave absorbers
Zhihong Chen, Konghu Tian, Chao Zhang, Ruiwen Shu, Jinbo Zhu, Yin Liu, Yanan Huang, Xiaowei Liu
Abstract
) of -41.80 dB was achieved with the NiCo-APs@HCC composite thickness of 2.29 mm. The effective absorption bandwidth (EAB) reached the maximum of 5.8 GHz, spanning nearly the entire Ku band. In addition, the improved EMW absorption performance was further promoted by favorable impedance matching, strong conduction loss, magnetic loss, dipole polarization, interface polarization, multiple reflections, and scattering. A novel strategy for designing magnetic metal/carbon matrix composites with excellent EMW absorption performance is reported in this study.
Topics & Concepts
Materials scienceReflection lossComposite materialComposite numberHeterojunctionImpedance matchingAbsorption (acoustics)AlloyOptoelectronicsElectrical impedanceElectrical engineeringEngineeringElectromagnetic wave absorption materialsAdvanced Antenna and Metasurface TechnologiesMetamaterials and Metasurfaces Applications