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Poling Technologies and Design Optimization for Integrated Piezoelectric Bulk Transducers and Piezoelectric Composites
Author(s) -
Eßlinger Sophia,
Schönecker Andreas,
Neumeister Peter
Publication year - 2018
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201800408
Subject(s) - poling , piezoelectricity , materials science , fabrication , ceramic , transducer , composite material , coupling (piping) , finite element method , pmut , polarizability , mechanical engineering , acoustics , engineering physics , structural engineering , optoelectronics , engineering , dielectric , ferroelectricity , physics , medicine , alternative medicine , pathology , quantum mechanics , molecule
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.