Barium-zinc-titanate ceramics

Abstract

Starting mixtures of BaCO3, ZnO and TiO2 powders were mechanically activated in a planetary ball mill for various periods of time. The powders obtained were sintered nonisothermally to temperatures between 1100 and 1300°C and then held at those temperatures for 120 min. Results of structural characterization using X-ray powder diffraction method, DTA analyses and SEM analyses were conducted for activated and sintered samples. These results were correlated with the results of electric resistivity, capacitance and loss tangent of the samples and it was found that with increasing in milling time, the increase in values of electrical properties was noticed.