Dielectric and Ferroelectric Properties of (Ba0.95Ca0.05) (Ti0.90Zr0.1) O3 Composition
S.D. Chavan, S.G. Chavan, D.J. Salunkhe
Lead free ferroelectric composition (Ba0.95Ca0.05) (Ti0.90Zr0.1) O3 (BCTZ) is synthesized using ceramic route of synthesis. The X-ray diffraction reveals the presence of tetragonal phase. From the observations of variation of dielectric constant (ε) with temperature, it is revealed that BCTZ shows a relaxor behavior. On the other hand for BCTZ composition, the phase transition is a diffused phase transition (DPT). The BCZT composition exhibited a satisfactory dielectric constant and low dielectric loss tanδ.The investigations on the P-E hysteresis loop reveal that the composition possesses useful values of maximum polarization (Pmax) and remnant polarization (Pr). The present observations suggests that the BCTZ could be a useful Lead free ferroelectric composition.