earticle

영어

The formation and thermal properties of the BaO2 and TiO2 mixtures were prepared by mechanical alloying method was investigated by X-ray diffractometry (XRD), scanning electron microscopy (SEM), and thermogravimetric/differential thermal analysis (TG/DTA). The rotating speed of 750 rpm shows more effects on the formation of BaTiO3 single phase. The internal strain calculated using Williamson-Hall method was 4.27×10-3 for the mixture milled for 300 min, the crystallite size was calculated using the Scherrer method decreased with milling time. The BaTiO3 crystal improved crystallinity was formed by thermal annealing at a temperature of 600oC for 1 h for the mixture milled for 300 min.