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Microelectromechanics for the Nonlinear Response and Fracture of Ferroelectric Ceramics

Microelectromechanics for the Nonlinear Response and Fracture of Ferroelectric Ceramics
铁电陶瓷非线性响应和断裂的微机电
批准号：
9813022
负责人：
Robert McMeeking
金额：
$0.0万
依托单位：
University of California-Santa Barbara
依托单位国家：
美国
项目类别：
Continuing grant
财政年份：
1998
资助国家：
美国
项目状态：
已结题
起止时间：
1998-09-01 至 2003-08-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9813022&HistoricalAwards=false
关键词：
MicroelectromechanicsNonlinearResponseFractureFerroelectric

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中文摘要
翻译
9813022 McMeeking 研究了钙钛矿铁电陶瓷 (PFC) 和单晶的微机电性能。通过简单的实验来研究多晶和单晶 PFC 在同时存在电场和机械应力的情况下的开关响应。 PFC 的非线性行为模型与实验数据相结合，用于开发唯象本构定律来预测多晶陶瓷和单晶的响应。还开发了 PFC 的断裂力学方法。 ***
英文摘要
9813022 McMeeking The microelectromechanics of perovskite ferroelectric ceramics (PFC) and single crystals is investigated. Simple experiments are conducted to study the swithcing response of polycrystalline and single crystal PFCs in the presence of simulataneous electric field and mechanical stress. Models for nonlinear behavior of PFC combined with the experimental data are used to develop phenomenological constitutive laws to predict the response of polycrystalline ceramics and single crystals. A fracture mechanics approach for PFCs is also developed. ***
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