E3S Web of Conferences (Jan 2021)

Permittivity of SiC ceramic matrix compositesin Ku band

  • Ouhassan Youssef,
  • Bri Seddik,
  • El boubakraoui My Chrif,
  • Habibi Mohamed

DOI
https://doi.org/10.1051/e3sconf/202122901012
Journal volume & issue
Vol. 229
p. 01012

Abstract

Read online

The objective of this work is to determine the dielectric permittivity of two SiC ceramic matrix composites. These composites are reinforced with NicalonSiCfibers and SCS6SiC fibers (SiCf / SiC) and have different volume fractions. The results obtained show that the dielectric property depends on the volume fraction and the frequency. Composites with high volume fractions have better dielectric properties than others. The values of the real and imaginary part of the complex permittivity decrease with frequency increase in the Ku-band. Moreover, the imaginary part takes negative values.