用二次合成法制备了掺镧的PZN基多元系陶瓷并研究了镧掺杂对该体系陶瓷的相结构、介电、电致伸缩性能及电滞回线的影响.实验结果表明:随着镧含量的增加,陶瓷的钙钛矿相含量、介电常数、纵向及横向电致应变和电致伸缩系数减小,电滞后效应降低即剩余极化和矫顽场强减小,陶瓷的介电性能的温度稳定性也得到了改善.
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