Synthesis and Characterization of Lead free xBaZr0 2Ti0 8O3 1 Ba0 7Ca0 3TiO3 Based Ceramics for Energy Storage Capacitor Applications

Abstract

newline The increased use of energy sources augmented the demand of energy storage components for operating the basic electronic gadgets to warfare technologies. Consequently, the development of new sustainable energy storage technologies for a healthier future is always indispensable. In this context, the dielectric capacitors mark their signature as a vital component in the energy storage devices starting from the basic mobile phone technology to the most advanced pulsed power technology (PPT). PPT demands materials that can store energy for a long period and release it as a high-power pulse over a short period. The dielectric capacitors are found to be the optimal option among the presently available energy storage devices for the PPT. Very recently, the relaxor ferroelectric (RFEs) materials received greater attention as an ideal contender for the fabrication of energy storage capacitor. Unlike ferroelectrics with long-range ordered domains and high remnant polarization (and#119875;and#119903;), RFEs are characterized by the polar nano regions (PNRs) and usually possess negligible and#119875;and#119903;, high maximum polarization (and#119875;and#119898;) and low coercive field (and#119864;and#119888;). These properties are vital to achieve high energy density and efficiency in dielectric capacitors. Yet, the studies on RFE systems are in the developing stage as the majorities are lead (Pb) containing compositions. With serious concern of environmental protection, efforts are being made to develop promising Pb-free candidates