Enhancement of electromechanical coupling coefficient and acoustic power density in conventional "hard" Pb(Zr1-xTix)O-3 ceramics by application of uniaxial stress

Authors
Viehland, D Tito, F McLaughlin, E Robinson, H Janus, R Ewart, L Powers, J
Citation
D. Viehland et al., Enhancement of electromechanical coupling coefficient and acoustic power density in conventional "hard" Pb(Zr1-xTix)O-3 ceramics by application of uniaxial stress, J APPL PHYS, 90(3), 2001, pp. 1496-1500
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
90
Issue
3
Year of publication
2001
Pages
1496 - 1500
Database
ISI
SICI code
0021-8979(20010801)90:3<1496:EOECCA>2.0.ZU;2-V
Abstract
Investigations of the polarization versus electric field (P-E) and strain v ersus electric field (epsilon -E) responses for "hard" Pb(Zr1-xTix)O-3 piez oelectric ceramics have been performed under various uniaxial stresses (sig ma) and ac electrical drive fields. Investigations revealed a significant d ecrease in the remanent polarization of specimens with increasing sigma. Su bsequent calculations of the longitudinal electromechanical coupling coeffi cient (k(33)) and acoustic power density revealed significant enhancements with increasing sigma. (C) 2001 American Institute of Physics.