Piezoelectric strain in lead zirconate titante ceramics as a function of electric field, frequency, and dc bias
Piezoelectric strain in lead zirconate titante ceramics as a function of electric field, frequency, and dc bias
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DOI：
10.1063/1.1587008
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发表时间：
2003-07-15
影响因子：
3.2
通讯作者：
Mukherjee, BK
中科院分区：
文献类型：
--
作者：
Masys, AJ;Ren, W;Mukherjee, BK
我们研究了压电陶瓷的机电响应作为大电场的振幅和频率的函数，并研究了直流偏置场的影响。为了表征这些条件下的材料，ZMI 2000激光干涉仪系统从Zygo公司已安装和修改，直接测量铁电陶瓷的应变。该系统采用外差检测技术，具有相位检测、带宽宽、稳定性高、光学准直容易等优点。我们的实验已被用来确定锆钛酸铅（PZT）陶瓷的应变作为电场的函数和作为频率的函数在低频范围内。根据这些测量，压电系数d（33）、d（31）和d（15）已被确定为施加场和频率的函数。此外，在准静态和共振条件下，压电系数的依赖性下施加的直流偏置场已被研究。我们的一些测量提供了证据的压电响应的时间依赖性。结果的范围内的软，硬PZT陶瓷制造的EDO公司。这些结果进行了讨论的背景下，外来贡献的压电响应。(C)2003年，美国物理学会。
We have investigated the electromechanical response of piezoelectric ceramics as a function of the amplitude and frequency of large electric fields and studied the effects of dc bias fields. In order to characterize the materials under these conditions, a ZMI 2000 laser interferometer system from Zygo Corp. has been installed and modified to directly measure the strains of ferroelectric ceramics. This system uses a heterodyne detection technique and has the advantages of phase detection, wide bandwidth, high stability, and easy optical alignment. Our experiment has been used to determine the strain of lead zirconate titanate (PZT) ceramics as a function of electric fields and as a function of frequency in the low frequency range. From these measurements the piezoelectric coefficients d(33), d(31), and d(15) have been determined as a function of applied field and frequency. In addition the dependence of the piezoelectric coefficients under an applied dc bias field has been studied under quasistatic and under resonance conditions. Some of our measurements have provided evidence of the time dependence of the piezoelectric response. Results on a range of soft and hard PZT ceramics manufactured by EDO Corp. are presented. These results are discussed within the context of extrinsic contributions to the piezoelectric response. (C) 2003 American Institute of Physics.