Poling Technologies and Design Optimization for Integrated Piezoelectric Bulk Transducers and Piezoelectric Composites

• Published in: Advanced engineering materials 2018-12, Vol.20 (12), p.n/a
• Main Authors: Eßlinger, Sophia, Schönecker, Andreas, Neumeister, Peter
• Format: Article
• Language: English
• Subjects: lead‐zirconate‐titanate (PZT); piezoelectricity; poling; series integration
• ISSN: 1438-1656; 1527-2648
• DOI: 10.1002/adem.201800408

The present paper investigates new approaches for the optimization of the electromechanical coupling of integrated piezoelectric transducers with view on series integration processes. Thereby, the focus lies on the poling process itself as well as on the device design ensuring polarizability. In the first part, poling of piezoelectric bulk materials is reviewed with the aim to identify potentials for its direct implementation into the fabrication process of functionalized lightweight structures. In the second part of the paper, design and poling process of polymer‐ceramic composites made of piezoelectric fibers and particles are evaluated. On the basis of finite element analyses and simplified poling models, suggestions for significant performance improvements are made. First experiments confirm the potential of the considered approaches. Poling of integrated piezoelectric transducers is optimized with view on series integration processes. Experiments on bulk material as well as design and poling process of polymer‐ceramic composites made of piezoelectric fibers and particles are evaluated. On the basis of finite element analyses and simplified poling models, suggestions for significant performance improvements are developed.