一、引言压电陶瓷的稳定性问题是压电陶瓷工作中一个相当重要的课题。过去对影响稳定性的物理机构以及改善稳定性的途径,有过不少探讨。但大多数是属于BaTiO_3陶瓷,对目前广泛使用的锆钛酸铅陶瓷和三元系陶瓷则研究甚少。而且主要研究材料的时间稳定 First, the introduction Piezoelectric ceramic stability problem is a very important issue in the work of piezoelectric ceramics. In the past, there have been many discussions on the physical institutions that affect stability and the ways to improve stability. However, most of them belong to BaTiO_3 ceramics. However, little research has been done on the lead zirconate titanate ceramics and ternary ceramics widely used at present. And the main research materials, time stability