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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研究了钙钛矿型铁电陶瓷（PFC）和单晶体的微机电性能。通过简单的实验研究了多晶和单晶PFC在电场和机械应力共同作用下的开关响应。PFC的非线性行为的模型结合实验数据被用来开发唯象本构关系，预测多晶陶瓷和单晶的响应。还提出了一种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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