The incorporation of nano-sized Calcium Copper Titanate (nano-CCTO) fillers into epoxy composites has been shown to significantly impact their dielectric properties. This study investigates the influence of varying concentrations of nano-CCTO on the dielectric constant of epoxy composites, focusing on understanding how these fillers alter the electrical behavior of the matrix material. Nano-CCTO particles, known for their high dielectric permittivity and low dielectric losses, were synthesized and incorporated into an epoxy resin at different weight fractions. The dielectric properties of the resulting composites were characterized using impedance spectroscopy over a broad frequency range. The study reveals that the dielectric constant of the epoxy composites increases with the addition of nano-CCTO fillers, with the most pronounced effects observed at specific filler concentrations. The observed improvements in dielectric properties are attributed to the enhanced polarization effects and the formation of a percolation network within the composite matrix. These findings suggest that nano-CCTO fillers can be effectively used to tailor the dielectric properties of epoxy composites for advanced electronic and electrical applications.

Nano-CCTO, epoxy composites, dielectric constant

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