| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5439652 | Composites Part A: Applied Science and Manufacturing | 2017 | 8 Pages |
Abstract
A comparative investigation of microstructure, mechanical properties, complex permittivity and microwave absorbing properties of two types of SiCf/epoxy composites were investigated. The microstructure of SiCf was characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Raman spectra techniques. The different microstructure led to different complex permittivity of the composites. The complex permittivity of KD-ISiCf/epoxy composite was larger than their counterparts of SLF-SiCf/epoxy composite while the flexural strength was almost same. The strong interfacial polarization and high electrical conductivity are attributed to the higher complex permittivity of KD-ISiCf/epoxy composite. Though the complex permittivity of KD-ISiCf and SLF-SiCf composites have big difference, the absorbing properties in the X band (8.2-12.4Â GHz) were not good due to the impedance degree and attenuation characteristics cannot meet the requirement at the same time.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hongyu Wang, Dongmei Zhu, Xiufeng Wang, Fa Luo,