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Lead zirconate titanate

About: Lead zirconate titanate is a research topic. Over the lifetime, 7141 publications have been published within this topic receiving 150878 citations.


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Journal ArticleDOI
TL;DR: A tensor representation for the fracture toughness, now a function of the crack plane normal and the poling direction, is developed in this paper, where the maximum and minimum values in the toughness tensor are related to the unpoled toughness by a simple phenomenological relationship.
Abstract: Lead zirconate titanate specimens, at composition Zr 48.9±1.0 /Ti 51.1±1.0 , of grain sizes ranging from 0.5 to 15 μm were prepared by hot pressing. The fracture toughness showed a 40% increase in the fine-grained specimens. Poling produced anisotropy in the fracture toughness. A tensor representation for the fracture toughness, now a function of the crack plane normal and the poling direction, is developed. The maximum and minimum values in the toughness tensor are shown to be related to the unpoled toughness by a simple phenomenological relationship. We also find that the piezoelectric coefficient, d 33 , shows a slight increase for the fine-grained specimens, which is in conflict with the general view that smaller-grained materials can sustain vanishingly small values of spontaneous polarization.

48 citations

Journal ArticleDOI
TL;DR: In this article, a rigid piezo-damping epoxy-matrix composites containing multi-walled carbon nanotubes (CNT) and piezoelectric lead zirconate titanate (PZT) was prepared, and the electrical and the damping properties were investigated.

48 citations

Journal ArticleDOI
TL;DR: In this article, the reverse process of de-aging by electric field cycling is investigated on Pb(Zr0.54Ti0.46)O3 doped with iron in different concentrations.
Abstract: Acceptor-doped ferroelectrics tend to show pronounced aging behavior. The microscopic effects of aging are commonly related to oxygen vacancies, however, there are still open questions with respect to their impact on domain wall movements. To elucidate the latter, the reverse process of de-aging by electric field cycling is investigated here on Pb(Zr0.54Ti0.46)O3 doped with iron in different concentrations. Measurements of the hysteretic behavior of large-signal parameters, i.e., polarization and strain, as well as small-signal parameters, i.e., electrical permittivity and piezoelectric coefficient, are used to distinguish between reversible and irreversible movement of 180°- and non-180° domain walls. The results indicate that for low doping concentrations, the de-aging behavior of 180° domain wall motion is governed by irreversible domain wall motion and a coarsening of the domain structure, while for non-180° domain walls the change in reversible domain wall mobility is the dominant de-aging mechanism. For high doping concentrations, an additional clamping effect related to the smaller grain size occurs.

48 citations

Journal ArticleDOI
TL;DR: In this article, transparent lanthanum-modified lead zirconate titanate (PLZT) thin films with electro-optic properties were deposited on indium-doped tin oxide (ITO) coated glass by pulsed laser deposition (PLD).

47 citations

Journal ArticleDOI
TL;DR: In this article, it is considered that the emission is induced by abrupt change of dielectric flux as well as the polarization reversal, and the emitted charge per one pulse depends on pulse frequency when it is less than 2 kHz.
Abstract: Electron emission into vacuum from a thin plate of lead-zirconate-titanate (PZT) ferroelectric ceramics has been observed under the impression of pulse electric field. Electrons are emitted not only from the ceramic surface near the electrode edge but also through the thin metal electrode. The emitted charge per one pulse little depends on pulse frequency when it is less than 2 kHz, and so the current density can be enhanced by increasing the frequency. The emission is observed even at temperatures above Curie temperature. It is considered that the emission is induced by abrupt change of dielectric flux as well as the polarization reversal.

47 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023116
2022267
2021168
2020180
2019189
2018206