中文摘要：

摘要二化学作文 PbLa (Zr， Sn， Ti ) ferroelectric-anti-ferroelectric (FE/AFE ) 附近的 O_3 (PLZST ) 陶艺分阶段执行边界被一个 traditionalsolid 状态反应过程准备。在电场和阶段转变上的静水力学的压力的影响下面的电致伸缩性质和 thesePLZST 陶艺的绝缘的性质被学习了。在 AC 电场下面，这二件样品的紧张分别地到达了 0.21% 和 0.13% 。与增加压力，反铁电体的 FE/AFE 阶段转变温度减少了， antiferroelectric-paraelectric (AFE/PE ) 阶段转变温度增加了，当铁电体的 ferroelectric-paraelec-tric (FE/PE ) 阶段转变温度减少了时。

英文摘要：

Two chemical compositions PbLa（Zr, Sn, Ti）O3 （PLZST） ceramics near the ferroelectric-antiferroelectric （FE/AFE） phase boundary were prepared by a traditional solid-state reaction process. The electrostriction properties under the electric field and the influence of hydrostatic pressure on the phase transition and the dielectric properties of these PLZST ceramics have been studied. Under the AC electric field, the strain of these two samples reached 0.21% and 0.13%, respectively. With increasing pressure, the FE/AFE phase transition temperature of the antiferroelectrics decreased and the antiferroelectric-paraelectric （AFE/PE） phase transition temperature increased, while the ferroelectric-paraelectric （FE/PE） phase transition temperature of the ferroelectrics decreased.