Correlation of small- and large-signal properties of lead zirconate titanate multilayer actuators
Correlation of small- and large-signal properties of lead zirconate titanate multilayer actuators
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DOI：
10.1016/j.actamat.2008.08.057
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发表时间：
2009
期刊：
影响因子：
9.4
通讯作者：
I. Kerkamm;P. Hiller;T. Granzow;J. Rödel
中科院分区：
文献类型：
--
作者：
I. Kerkamm;P. Hiller;T. Granzow;J. Rödel
获得了双极性和单极电负载下锆钛酸铅（PZT）多层致动器的极化和应变滞后曲线作为施加单轴压应力的函数。这些大信号介电和压电特性与纵向压电系数d33和纵向介电常数ε33的相应小信号特性相关。一个完整的比较提供了通过获得的小信号特性的函数施加的直流电场和单轴压应力。结果提出的多层致动器的最佳性能的指导方针，但也在一个定性的描述与宏观应变的压电系数的滞后。
Polarization and strain hysteresis curves of lead zirconate titanate (PZT) multilayer actuators were obtained for both bipolar and unipolar electrical loading as a function of applied uniaxial compressive stress. These large-signal dielectric and piezoelectric properties are correlated with the corresponding small-signal properties of longitudinal piezoelectric coefficient d33and longitudinal dielectric permittivity ε33. A complete comparison is afforded by obtaining the small-signal properties as functions of both applied DC electrical field and uniaxial compressive stress. Results are presented in terms of guidelines for optimal performance of multilayer actuators, but also in terms of a qualitative description correlating the hysteresis of the piezoelectric coefficient with the macroscopic strain.