Synthesis and Characterizations of Ca, La and Zr Modified PbTiO3 Ceramics

Abstract

compositions of Ca, La and Zr doped PbTiO3 sample were prepared by sol–gel technique. Thephase formation and structural property of all compositions were studied by X-Ray diffraction(XRD) technique.
 The XRD pattern of PCT, PLT & PLZT ceramics indicated the formation of single perovskite phase at 650oC, 650oC&950oCcalcination temperatures, respectively.
 The surface morphology of the sintered pellets were studied by SEM, which showed dense and homogeneous packing of grains with grain size ~0.72μm, 0.85μm and ~1.12 μm, respectively for PCT, PLT & PLZT ceramics.
 Temperature and frequency dependenceof dielectric behaviors of some of the selected compositions have been studied.
 The formation of saturated PE hysteresis loops in case of La and Zr modified PT ceramics confirmed the ferroelectric nature of these samples.