The function of pyrochlore in piezoelectric ceramic of PMSN quarternary system to properties was studied by XRD,SEM and electric properties examination, and the method to do with was discussed.

• 通过X射线衍射、扫描电镜及电性能测试,分析了PMSN系压电陶瓷中焦绿石相对材料性能的影响,讨论了解决的办法;