Premium
1‐3‐Type Composites Based on Ferroelectrics: Electromechanical Coupling, Figures of Merit, and Piezotechnical Energy‐Harvesting Applications
Author(s) -
Bowen Christopher R.,
Topolov Vitaly Yu.,
Zhang Yan,
Panich Alexander A.
Publication year - 2018
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201700623
Subject(s) - figure of merit , piezoelectricity , materials science , ferroelectricity , anisotropy , electromechanical coupling coefficient , composite material , energy harvesting , ceramic , hydrostatic equilibrium , coupling (piping) , ferroelectric ceramics , context (archaeology) , transducer , energy (signal processing) , acoustics , optoelectronics , physics , optics , dielectric , paleontology , quantum mechanics , biology
The physical and microgeometric factors that are able to improve the piezoelectric performance, anisotropy, and energy‐harvesting characteristics of modern 1‐3‐type composites based on ferroelectrics are discussed. The composite connectivity patterns of particular interest for this study include 1‐3‐0, 1‐0‐3, and 1‐2‐2. The active components of the studied composites are chosen from conventional perovskite‐type ferroelectric ceramics, lead‐free materials, or domain‐engineered single crystals, all of which exhibit particularly intriguing electromechanical properties. Examples of the large anisotropy of piezoelectric coefficients, electromechanical coupling factors, squared figures of merit, and large hydrostatic parameters of the three‐component 1‐3‐type composites are considered in the context of their piezotechnical applications. The applications of these materials include piezoelectric transducers, sensors, energy‐harvesting, and hydroacoustic devices.