In this study, barium zirconate was synthesized by solid-state reaction using barium carbonate and zirconium dioxide. The reaction process and optimum heat treatment condition were determined by the techniques of X-ray diffraction, scanning electron microscopy & energy dispersive spectroscopy, and thermogravimetric & differential scanning calorimetry, etc. The results showed that the solid-state reaction starts at 1000 °C, and the optimum synthesis temperature was determined as 1200 °C. The reaction kinetic parameters were calculated using the Kissinger method, Ozawa's method, and Coats-Redfern method, the reaction activation energies of the first two were 251.42 kJ·mol⁻¹ and 261.35 kJ·mol⁻¹, respectively. The reaction mechanism was determined by the Coats-Redfern method based on different kinetic models, it follows the diffusion-controlled kinetics, and belongs to 1-D diffusion reaction. The reaction activation energy decreased from 342.56 kJ·mol⁻¹ to 272.32 kJ·mol⁻¹ as the heating rate increased from 5 K·min⁻¹ to 20 K·min⁻¹.

在这项研究中，使用碳酸钡和二氧化锆通过固相反应合成了锆酸钡。采用X射线衍射、扫描电镜&能谱、热重&差示扫描量热等技术确定了反应过程和最佳热处理条件。结果表明，固相反应在1000℃开始。 ，最佳合成温度确定为1200℃。采用Kissinger法、Ozawa法和Coats-Redfern法计算反应动力学参数，前两种方法的反应活化能分别为251.42 kJ·mol ^-1和261.35 kJ·mol ^-1， 分别。反应机理采用基于不同动力学模型的Coats-Redfern法确定，遵循扩散控制动力学，属于一维扩散反应。随着加热速率从5 K·min -1 增加到²⁰ K·min -1 ，反应活化能从342.56 kJ·mol -1 减少到^272.32 kJ ^· mol ^-1。