Substitution of calcium in the perovskite system of bismuth titanate

Tn this work we present preliminary results on the study of the ceramic sys tem, described here by the proposed formula Ca(n)Bi(4)Ti(3+n)O(12+3)n, wher e 0.25 < n < 2.10. We synthesised this series of compounds by solid state r eaction method. The technique used for characterisation were DTA, DSC, TG, X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). It w as found that reaction temperature of these compounds is 889 degrees C. We obtained a single phase in the range of 1.00 < n < 2.10, the identified str ucture by XRD is isostructural to SrBi4Ti4O15 compound, which has an orthor hombic structure [1]. Well formed grained structure is exhibited by electro n microscope photographs.