Authors : A. D. Dahegaonkar
Page Nos : 68-73
Description :
Fly ash is finely divided waste obtained during the generation of energy in thermal power plants by burning powdered coal. The recycling of fly ash has become an issue in recent years, as this industrial waste is environmentally and economically important. The conductivity and dielectric permittivity parameters of the pellet measured as a function of temperature. Then, they were analysed how these parameters change depending on varying temperatures. Real and imaginary part of dielectric properties of the fly ash measured in the temperature range of 25–150 °C. Temperature dependence of real and imaginary part of dielectric permittivity suggests that fly ash exhibits strong broadband electrical behaviour. XRD study have performed to determine structural properties of fly ash. SEM analysis has performed to observe the surface morphology of fly ash. Electrical properties of fly ash used to control the conductivity to make it suitable for various applications and the result obtained from dielectric study of fly ash is of greater scientific and technological interest for the fabrication of good quality of capacitor. With utilization of this waste, it is possible to save energy, produce cheaper and protect ecological balance.
