Abstract

It is demonstrated that the dielectric properties of ceramics in the 0.6PMN–0.4PZN system have been studied as a function of different synthesis method at various temperatures. A detail and systematic study of phase, grain size and dielectric properties has been carried out by using X-ray diffraction, SEM techniques and dielectric measurement. Our analysis revealed that the optimum results were obtained for ceramics synthesized by columbite method as compared to combustion. The maximum dielectric constant was found to be 25,300 with Tc 46 °C at 100 Hz by columbite method whereas 17,449 with Tc 43 °C at 100 Hz by combustion method. The article concludes with the brief discussion of promising method with acceptable relaxor behavior.

摘要

结果表明，已经研究了陶瓷在0.6PMN–0.4PZN体系中的介电性能，它是在不同温度下不同合成方法的函数。通过使用X射线衍射，SEM技术和介电测量对相，晶粒尺寸和介电性能进行了详细的系统研究。我们的分析表明，与燃烧相比，采用哥伦比方法合成的陶瓷获得了最佳结果。通过柱管法在100 Hz的Tc 46°C下发现最大介电常数为25,300，而在100 Hz的Tc 43°C下通过燃烧法发现最大介电常数为17,449。本文最后简要讨论了具有可接受的松弛行为的有前途的方法。