Complex Permittivity of 3D Textile SiC/C/SiC Composites Fabricated by Chemical Vapor Infiltration at X-Band Frequency

Abstract:

Three-dimensional textile SiC fiber reinforced SiC composites with pyrolytic carbon interfacial layer (3D-SiC/C/SiC) were fabricated by chemical vapor infiltration. The microstructure and complex permittivity of the 3D textile SiC/C/SiC composites were investigated. The flexural strength of the 3D textile SiC/C/SiC composites was 860 MPa at room temperature. The real part (ε′) and imaginary part (ε″) of the complex permittivity of the 3D-SiC/C/SiC composites are 9.11~10.03 and 4.11~4.49, respectively at the X-band frequency. The 3D-SiC/C/SiC composites would be a good candidate for structural microwave absorbing material.

• Periodical: Key Engineering Materials (Volumes 368-372)
• Pages: 1028-1030
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.368-372.1028
• Online since: February 2008
• Authors: Dong Lin Zhao, Hong Feng Yin, Yong Dong Xu, Fa Luo, Wan Cheng Zhou
• Keywords: Complex Permittivity, Microwave Absorbing Material, SiC/C/SiC Composites

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