CAREER: Constitutive Behavior of Ferroelectric Ceramics

9702169 Lynch 开发了控制铁电陶瓷及其实施的多轴本构定律。铁电陶瓷可用作工业应用中的传感器和执行器。这些定律是利用钛酸钡单晶和大晶粒钛酸钡陶瓷的实验结果进行校准的。该模型用于模拟细晶粒钛酸钡陶瓷的行为，并对这些预测进行了实验验证。该模型以有限元代码实现，以获得材料研究和系统设计工具。开发了使用铁电材料和交互式显示器来辅导高中生的实验室实验。 ***

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. ***