Abstract

Oxides of strontium, bismuth, calcium, and titanium were aggregated by high energy mechanical milling. XRD and SEM analyses revealed characteristic peaks for materials of a similar crystal structure. The temperature response of dielectric constant has been recorded at various frequencies. An increase of dielectric constant until the Curie temperature has a huge impact on the dielectric constant. A transformed version of the Lorentz equation is suggested to match experimental results and find the activation energy. To ensure the reliability of our formula, the value from the non-linear curve fitting is checked for each trial. The activation energy was found to be in the range of 80–90 μeV.

摘要

锶，铋，钙和钛的氧化物通过高能机械研磨而聚集。XRD和SEM分析显示出具有相似晶体结构的材料的特征峰。介电常数的温度响应已在各种频率下记录下来。直到居里温度，介电常数的增加对介电常数都有很大的影响。提出了洛伦兹方程的变换形式以匹配实验结果并找到活化能。为了确保我们公式的可靠性，每次试验都要检查非线性曲线拟合的值。发现活化能在80–90μeV的范围内。