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Dielectric Properties of Epoxy / BaTiO3 Composites | ||
| Journal of Basrah Researches (Sciences) | ||
| Article 1, Volume 36, Issue 3, 2010, Pages 1-7 PDF (0 K) | ||
| Author | ||
| Abdullah A. Hussain and Waleed A. Hussain | ||
| Abstract | ||
| Dielectric properties such as relative permittivity (dielectric constant) (ε′) and dielectric loss (ε") of (epoxy resin – barium titanate) composites behaviour as a function of barium titanate volume fractions (5, 10, 15, 20, 25, 30, 35, 40) vol.%, temperature in the range (30 - 110) ◦C and frequency in the range (120Hz - 2MHz), were investigated and given a qualitative explanation. The permittivity was found to increase with the increase of BaTiO3 filler content, and was high in the low frequency range, but diminishes as the frequency increases. The permittivity was found to increase with the increase of temperature up to the transition temperature (Tg). Ac. conductivity and impedance of the composites behaviours as function of frequency and temperature have also been investigated. | ||
| Keywords | ||
| composite; Dielectric properties; permittivity; Barium titanate; Conductivity; interfacial polarization | ||
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