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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12128/8761
Title: Piezoelectric and elastic properties of relaxor-like PZT:Ba ceramics
Authors: Lazar, Iwona
Adamczyk-Habrajska, Małgorzata
Pawełczyk, Marian
Górny, Michał
Zawada, Anna
Roleder, Krystian
Keywords: X-ray methods; dielectric properties; piezoelectric properties; elastic properties; PZT
Issue Date: 2018
Citation: Journal of Electroceramics, Vol. 40, Issue 3 (2018), s. 203-210
Abstract: The solid solutions of PbZr1-xTixO3 (PZT) are the most known and widely applicable piezoelectric ceramic materials. The influence of different dopants on PZT properties has been studied for many years. Some of such compositions have revealed a behavior typical for ferroelectric relaxors. In the case of Pb0.75Ba0.25Zr0.70Ti0.30O3 ceramics (abbreviation PBZT 25/70/30), prepared by mixed-oxide processing technique elastic, it was found that macroscopic piezoelectric activity is present far above the temperature at which structural changes and maximum of permittivity occur in unpoled samples (~ 200 °C). Anomalies of the elastic and piezoelectric properties have been observed very clearly near the temperature of 152 °C. Within the temperature range of 152–220 °C, unstable piezoelectric properties have been detected due to the existence of polar micro/nano-clusters and non-trivial elastic-electric interactions between them, through the non-polar paraelectric matrix. The origin of such interactions could be lattice instabilities, dynamic change in polar cluster sizes, and fluctuations in chemical composition. Based on the results of the research, it can be said that PZT ceramics of such composition is a relaxor-like material and it is not a ferroelectric relaxor.
URI: http://hdl.handle.net/20.500.12128/8761
DOI: 10.1007/s10832-018-0121-6
ISSN: 1385-3449
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