FABRICATION AND CHARACTERIZATION OF PEROVSKITE FERROELECTRIC BATIO3 CERAMICS FROM BACO3 AND TIO2

Abstract

In this research project, a comprehensible way of preparing Barium Titanate is conducted through series of steps and then gone through specific sorts of analyzing and characterization of particular material undergone. The BaTiO3 precursor solution was made by using BaCO3 and TiO2 in deionized water and milled the mixed powders to get fine grain size and uniform mixing throughout the product after that dried the powder. We followed the specific experimental procedures, which is firstly, we weighed the powder by balance and then mix and crush by ball milling (12 hrs.) then drying by 100 oC for 12 hrs. After that, we sieved using mesh and calcination took place at 1100 oC for 10 hrs. Additionally, the powder samples are remilled for 12 hrs. then dry and fire at 100 oC for 12 hours ;again for fining sieved and green body is formed ultimately so that advanced heat treatments like sintering has been accounted in the process ;chilling and finally characterization took place Using X-ray Diffraction machine and also Differential Thermal analysis which means The thermal Decomposition of BaTiO3 powders were studied using DTG. More specifically; the phase transformation of the crystals due to milling and firing of the has been investigated as result the elevation in sintering temperature gave rise to the increase in density with grain size and the more crystalline the powder gets ,more high peak diffraction patterns are registered. The crystallite sizes (t) of different samples were estimated from the (110) peaks of XRD patterns,