Efficient electromagnetic wave absorption by SiC/Ni/NiO/C nanocomposites

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

6 Scopus Citations
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Author(s)

  • Run Yang
  • Jiaqing Yuan
  • Cuihong Yu
  • Kun Yan
  • Yao Fu
  • Hangqing Xie
  • Jian Chen
  • Xinglong Wu

Detail(s)

Original languageEnglish
Article number152519
Journal / PublicationJournal of Alloys and Compounds
Volume816
Online published1 Oct 2019
Publication statusPublished - 5 Mar 2020

Abstract

Multi-component composites consisting of SiC, Ni, NiO, and C nanoparticles (NPs) are fabricated by annealing SiC NPs and the Ni-based metal organic framework (Ni-MOF) in argon. The SiC/Ni/NiO/C nanocomposites exhibit efficient electromagnetic wave absorption (EWA) in comparison with the individual SiC NPs and Ni-MOF component. The minimal reflection loss (RL) is −50.52 dB at 13 GHz for a film thickness of 4.0 mm and the maximum bandwidth is 2.96 dB for RL < −10 dB and thickness of 2.5 mm. The outstanding absorption ability is attributed to the improved conductive paths rendered by the SiC NPs and multiple interfaces rendered by the SiC, Ni, NiO, and C NPs. As a result, interfacial polarization and multiple reflections are enhanced subsequently. This work reveals a new strategy to design and fabricate high-performance EWA materials by incorporating SiC NPs into magnetic materials.

Research Area(s)

  • Dielectric loss, Electrical conductivity, Electromagnetic wave absorption, Interfacial polarization, Magnetic materials

Citation Format(s)

Efficient electromagnetic wave absorption by SiC/Ni/NiO/C nanocomposites. / Yang, Run; Yuan, Jiaqing; Yu, Cuihong; Yan, Kun; Fu, Yao; Xie, Hangqing; Chen, Jian; Chu, Paul K.; Wu, Xinglong.

In: Journal of Alloys and Compounds, Vol. 816, 152519, 05.03.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal