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首页> 外文会议>Conference on Smart Structures and Materials 2000 Active Materials: Behavior and Mechanics 6-9 March 2000 Newport Beach, USA >Uniaxial stress dependence of the piezoelectric properties of lead zirconate titanate ceramics
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Uniaxial stress dependence of the piezoelectric properties of lead zirconate titanate ceramics

机译：钛酸锆钛酸铅陶瓷压电性能的单轴应力依赖性

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摘要

Piezoelectric transducers are often used under compressive stress in smart structure and other applications and it is therefore important to know the properties of these materials as a function of applied stress. We have developed an experimetn that allows us to find the piezoelectric charge coefficient as a function of uniaxial stress in the poled direction. Both dynamic and static measurements were carried otu and the corresponding values of the charge coefficient d_33 were obtained as a function of applied stress. These coefficients differ from each other because of the different proportions of reversible and irreversible domina hcanges that contrbute to them and each coefficient can be important in specific applications. Results on a range of PZT ceramics manufactured by EDO Corporation are presented; in general, they show a non-linear behaviour with an initial increase in d_33 as the stress increases followed by a significant decrease. The time dependence of the measurement has also been investigated.
机译：在智能结构和其他应用中，压电换能器通常在压缩应力下使用，因此，重要的是要了解这些材料的特性随施加应力的变化。我们已经开发出一种实验，可以让我们找到压电电荷系数作为极化方向上单轴应力的函数。可以同时进行动态和静态测量，并获得相应于所施加应力的电荷系数d_33的值。这些系数彼此不同，这是因为可逆和不可逆的支线比例不同，这对它们造成了影响，并且每个系数在特定应用中都可能很重要。介绍了EDO Corporation生产的一系列PZT陶瓷的结果；通常，它们显示出非线性行为，随着应力增加，d_33初始增加，然后显着减少。还研究了测量的时间依赖性。

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