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首页> 外文期刊>Journal of Applied Physics >Fatigue of extracted lead zirconate titanate multilayer actuators under unipolar high field electric cycling
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Fatigue of extracted lead zirconate titanate multilayer actuators under unipolar high field electric cycling

机译：单极高场电循环下提取的锆钛酸铅钛多层致动器的疲劳

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摘要

Testing of large prototype lead zirconate titanate (PZT) stacks presents substantial technical challenges to electronic testing systems, so an alternative approach that uses subunits extracted from prototypes has been pursued. Extracted 10-layer and 20-layer plate specimens were subjected to an electric cycle test under an electric field of 3.0/0.0 kV/mm, 100 Hz to 10~8 cycles. The effects of measurement field level and stack size (number of PZT layers) on the fatigue responses of piezoelectric and dielectric coefficients were observed. On-line monitoring permitted examination of the fatigue response of the PZT stacks. The fatigue rate (based on on-line monitoring) and the fatigue index (based on the conductance spectrum from impedance measurement or small signal measurement) were developed to quantify the fatigue status of the PZT stacks. The controlling fatigue mechanism was analyzed against the fatigue observations. The data presented can serve as input to design optimization of PZT stacks and to operation optimization in critical applications, such as piezoelectric fuel injectors in heavy-duty diesel engines.
机译：大型原型钛酸锆钛酸铅（PZT）堆栈的测试对电子测试系统提出了重大技术挑战，因此，人们一直在寻求使用从原型中提取的亚单元的替代方法。在3.0 / 0.0 kV / mm的电场，100 Hz到10〜8个循环的电场下，对提取的10层和20层板样品进行电循环测试。观察了测量场水平和堆叠尺寸（PZT层数）对压电和介电系数疲劳响应的影响。在线监测允许检查PZT堆的疲劳响应。开发了疲劳速率（基于在线监测）和疲劳指数（基于来自阻抗测量或小信号测量的电导谱）以量化PZT电池组的疲劳状态。针对疲劳观察分析了控制疲劳机理。呈现的数据可以用作PZT烟囱设计优化和关键应用（例如重型柴油机中的压电喷油器）运行优化的输入。

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  • 来源
    《Journal of Applied Physics》 |2014年第23期|234101.1-234101.12|共12页
  • 作者

    Hong Wang; Sung-Min Lee; James L. Wang; Hua-Tay Lin;

  • 作者单位

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

    School of Mechanical and Electronic Engineering, Guangdong University of Technology, Guangzhou, 510006, P. R. China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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