Parameter Optimization in the Synthesis of BZT Ceramics to Achieve Good Dielectric Properties

Abstract

The powder synthesis of barium zirconate titanate (BZT) (BaZr Ti O 3 ) from the mechanochemical activation of BaCO 3 , ZrO 2 , and TiO 2 was studied. The grinding effect, by using a planetary ball milling, on the crystallization temperature of BZT powders was analyzed. X-ray diffractometry, differential thermal analysis, thermogravimetric analysis, and scanning electronic microscopy (SEM) were used as characterization methods. The crystallization behavior of powders activated by high-energy grinding and the effect of grinding time on the BZT crystallization were analyzed. After grinding by 4 h, the BaZr (0.05) Ti (0.95) O 3 sample was almost fully crystallized at . The results of dielectric and ferroelectric properties show that high-energy ball milling is a practical and promising way to prepare BZT ceramics.