Characterization of piezoelectric ceramics and 1-3 composites for high power transducers.
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ABSTRACT: The high power characteristics of various piezoelectric ceramics and 1-3 composites were investigated. In contrast to "hard" Pb(Zr,Ti)O(3), modified (Bi(0.5)Na(0.5))TiO(3) based ceramics were found to show a relatively linear electromechanical response under high drive conditions due to their high stability of mechanical quality factor. The effects of high drive field and duty cycle on the behavior of 1-3 composites were analyzed by varying active and passive components. Improved high power characteristics of 1-3 composites were achieved by selection of optimized composite components, with enhanced electromechanical efficiency and thermal stability under high drive conditions.
SUBMITTER: Jae Lee H
PROVIDER: S-EPMC3411559 | biostudies-other | 2012 Jul
REPOSITORIES: biostudies-other
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