Abstract

EFFECT OF PARTICAL SIZE AND TEMPERATURE ON DIELECTRIC PARAMETERS OF FERROELECTRIC MATERIALS AT MICROWAVE FREQUENCY

Dr. Bhagwan K. Bongane* and Priyanka B. Bongane

Abstract

The dielectric properties of (BaZr0.05Ti0.95O3) have been carried out at the X-band microwave frequency. The composite material was prepared by using solid state reaction method. The dielectric constant (ε‟), dielectric loss (ε ״), quality factor Q = 1/tan , relaxation time (η) and conductivity (ζ) of BZT having particle sizes 500, 250, 176.5 and 125 microns have been studied at different temperatures i.e. - 100,+100,+300 and +500c. The experimental dielectric values have been verified by using correlation formulae‟s of Landau-Lifshitz- Looyengaand Bottcher. It founds the good agreement with experimental values.

Keywords: Relative Permittivity, Ferroelectric, Relaxation Time, Dielectric Constant, Quality Factor.