CAREER: Constitutive Behavior of Ferroelectric Ceramics

职业：铁电陶瓷的本构行为

• 批准号: 9702169
• 负责人: Christopher Lynch
• 金额: $ 19.23万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-05-15 至 2002-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9702169&HistoricalAwards=false
• 关键词: CAREER; Constitutive; Behavior; Ferroelectric; Ceramics

9702169 Lynch Multiaxial constitutive laws that govern ferroelectric ceramics and their implementation as design tools are developed. Ferroelectric ceramics may be applied as sensors and actuators in industrial applications. These laws are calibrated using the results of experiments on barium titanate single crystals and large grain barium titanate ceramics. The model are used to simulate the behavior of finer grained barium titanate ceramics and experimental validation of these predictions is done. The model is implemented in a finite element code to obtain a materials research and systems design tool. Laboratory experiments using ferroelectric materials and interactive displays for tutoring high school students are developed. ***

9702169建立了控制铁电陶瓷的林奇多轴本构关系及其作为设计工具的实现。铁电陶瓷可作为传感器和执行器应用于工业领域。利用对钛酸钡单晶和大颗粒钛酸钡陶瓷的实验结果，对这些定律进行了标定。用该模型模拟了细晶钛酸钡陶瓷的行为，并对预测结果进行了实验验证。该模型在有限元程序中实现，获得了材料研究和系统设计的工具。开展了使用铁电材料和互动显示器辅导高中生的实验室实验。***