Effects of SiC coating on microwave absorption of novel three-dimensional reticulated SiC/porous carbon foam

Xinli Ye, Zhaofeng Chen, Sufen Ai, Bin Hou, Junxiong Zhang, Xiaohui Liang, Qianbo Zhou, Hezhou Liu, Sheng Cui

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

SiC coating had key effects on designing and optimizing electromagnetic wave absorption properties of SiC films reinforced foam composites. In this paper, ultrathin three-dimensional reticulated SiC/porous carbon foam composite (3D-SiC/PCF) was prepared eventually, followed by the successive stable treatment, carbonization stage and chemical vapor deposition process. The results showed that the complex permittivities of 3D-SiC/PCF-II were much lower than that of PCF and 3D-SiC/PCF-I. Although the attenuation constant decreased with the induction of SiC coating, the impedance matching ratio increased. Besides, 3D-SiC/PCF-II possessed a better wave absorption performance, where the minimum reflection loss was −29.74 dB. At last, the influencing mechanism of both the impedance matching ratio and the attenuation constant behind was discussed to further probe the effect of the SiC content and provide suggestions for functional applications.

Original languageEnglish
Pages (from-to)8660-8668
Number of pages9
JournalCeramics International
Volume45
Issue number7
DOIs
StatePublished - May 2019

Keywords

  • Composite
  • Films
  • Functional applications
  • SiC

Fingerprint

Dive into the research topics of 'Effects of SiC coating on microwave absorption of novel three-dimensional reticulated SiC/porous carbon foam'. Together they form a unique fingerprint.

Cite this