CAREER: Constitutive Behavior of Ferroelectric Ceramics

9702169 Lynch开发了控制铁电陶瓷的多轴本构律及其作为设计工具的实现。铁电陶瓷在工业上可以用作传感器和执行器。利用钛酸钡单晶和大晶粒钛酸钡陶瓷的实验结果对这些规律进行了校正。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。该模型在有限元代码中实现，为材料研究和系统设计提供了工具。利用铁电材料和交互式显示器进行实验室实验。＊＊＊

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. ***