Synthesis and Characterization of Bi doped BaTiO3 ceramic

Abstract

Ba1-xBi2x/3TiO3 ceramics were prepared by solid state reaction route in different value of x (i.e., x = 0, 0.01, 0.025, 0.05, 0.075, 0.1). Structural property of all compositions is studied by XRD and surface morphology of the sintered pellets is studied by SEM analysis. XRD patterns reports the single phase tetragonal crystal system of the space group P4mm and pattern matched with the standard pattern JCPDS no. 05-0262 and it reveals the crystalline sizes decreases with increase the Bi concentration. SEM image shows the grain size decreases for x=0.01 and x=0.025 and increases with further addition of Bi concentration. The chemical composition of sintered pellets is analyzed by EDX. The temperature dependency dielectric study of Ba1-xBi2x/3TiO3 (i.e., x = 0, 0.025, 0.05) composition is studied. Dielectric constant and transition temperature decreases for x=0.025 and again increases for x=0.05. Curie constant values are calculated from the Curie Weiss law.