Large displacement transducers based on electric field forced phase transitions in the tetragonal (Pb0.97La0.02) (Ti,Zr,Sn)O3 family of ceramics
Large displacement transducers based on electric field forced phase transitions in the tetragonal (Pb0.97La0.02) (Ti,Zr,Sn)O3 family of ceramics
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DOI：
10.1063/1.343578
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发表时间：
1989-12
影响因子：
3.2
通讯作者：
W. Pan;C. Dam;Qiming Zhang;L. Cross
中科院分区：
文献类型：
--
作者：
W. Pan;C. Dam;Qiming Zhang;L. Cross
研究了用于高应变位移传感器的四方(Pb0.97La0.02)(锡，钛，锆)O_3反铁电陶瓷系列中与反铁电态和铁电态之间的场致相变有关的几种性质。相变引起的纵向场致应变在0.2%-0.9%之间。两种状态之间的单次切换时间约为1-2μS。在连续交流磁场驱动下，滞后加热效应引入温升，改变了原来的室温切换行为。陶瓷在交流磁场激励下发生退化，平均寿命在106-107周之间，通过仔细抛光样品表面可以大大提高寿命。
Several properties associated with the field‐induced phase change between the antiferroelectric and ferroelectric states in tetragonal (Pb0.97 La0.02 )(Sn,Ti,Zr)O3 antiferroelectric ceramic family were investigated for high‐strain displacement transducer applications. The longitudinal field‐induced strain accompanying the phase change is in the range of 0.2%–0.9%. The single‐shot switching time between the two states is on the order of 1–2 μs. Under continuous ac field driving, the hysteretic heating effect introduces a temperature rise, changing the original room‐temperature switching behavior. The ceramics degrade under ac field excitation, the average life cycles is in the range of 106 –107 cycles which can be greatly improved by carefully polishing the sample surfaces.