利用损耗模型研究PZT掺杂陶瓷的介电性能和力学性能

[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics Pub Date : 1990-06-06 DOI:10.1109/ISAF.1990.200319

R. Briot, P. Gonnard, M. Troccaz

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引用次数: 5

摘要

在锆钛酸铅中适当添加锰可降低压电陶瓷的损耗。本文试图说明考虑晶界和畴壁效应的等效电路如何允许分析添加锰对锆钛酸铅(PZT)陶瓷的介电和机械损耗的作用。从电导和导纳的实验频率依赖性分析出发，计算了等效电路的参数。计算机模拟可以识别体效应、畴壁效应和边界层效应及其频率依赖性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Studies on dielectric and mechanical properties of PZT doped ceramics, using a model of losses

A suitable manganese addition in lead zirconate titanate lowers losses of piezoceramics. An attempt is made to show how an equivalent electrical circuit taking into account the grain boundary and domain wall effects permits an analysis of the role of manganese addition on dielectric and mechanical losses in lead zirconate titanate (PZT) ceramics. From an analysis of the experimental frequency dependence of both conductance and admittance, the parameters of the equivalent circuit are calculated. Computer simulations allowed identification of bulk, domain wall, and boundary layer effects and their frequency dependence.<>

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[Proceedings] 1990 IEEE 7th International Symposium on Applications of Ferroelectrics

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