Induction of combinatory characteristics by relaxor modification of Pb(Zr0.5Ti0.5)O3
- 10 December 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 83 (24), 5020-5022
- https://doi.org/10.1063/1.1634695
Abstract
This letter reports a (PZT) based composition, which provides high piezoelectric and electromechanical properties. The general form of the composition is Four compositions corresponding to the earlier formulation were studied. For the composition corresponding to the radial mode coupling factor of 0.58, longitudinal mode piezoelectric constant of 277 pC/N, dielectric constant of 946, and mechanical quality factor of 1402 are obtained. X-ray diffraction, dielectric, and polarization-electric field measurements were done to investigate the origin for this high performance. It was found that high soft properties are obtained due to the shifting of PZT composition towards morphotropic phase boundary and high hard properties are obtained due to the generation of dipolar defects which pin the polarization.
Keywords
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