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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: The incorporation of acceptor dopant into the solid solution of PZT was responsible for the change of properties, the evolution of secondary phases and the weight loss behavior.
Abstract: Fine-grained acceptor-doped lead zirconate titanate (PZT) ceramics were sintered in a wide range of temperatures and times. The differences in dielectric and piezoelectric properties were relevant and quite independent of grain size. The incorporation of acceptor dopant into the solid solution of PZT was responsible for the change of properties, the evolution of secondary phases and the weight loss behaviour. The PbO rich phase located between grains displaced from the PbO-PZT system to PbO-PZ system when iron cations entered the PZT lattice. At this time, precipitated monoclinic grains of zirconia among with tetragonal perovskite grains revealed the compositional fluctuations. After the iron cations entered into solid solution the liquid formed dissolved new PZT grains again and displaced to PbO-PZT system with increasing of weight loss. Decomposition experiments revealed also the nature and the evolution of the second phases that are in accordance with TEM observations.

48 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of poling time on the piezoelectric properties of PZT-Portland cement composites was investigated and the results showed that the d33 and Kt values were highest at 28 pC/N and 19.87%, respectively.
Abstract: Lead zirconate titanate (PZT)-Portland cement (PC) composites were produced and the effect of poling time on the piezoelectric properties such as piezoelectric coefficient (d33) and electromechanical coupling coefficient (Kt) of 0–3 connectivity PZT-Portland cement (PC) composites were investigated. PZT-PC composites were produced using PZT of 60% by volume and the poling time of 15, 30, 45, 60 and 90 minutes were used. The results showed that when using the poling time at 45 minutes, the d33 and Kt values were found to be highest at 28 pC/N and 19.87%, respectively.

48 citations

Journal ArticleDOI
TL;DR: In this article, the evolution of the domain structure in lead zirconate titanate ceramics in the course of polarization fatigue is investigated by piezoresponse force microscopy.
Abstract: The evolution of the domain structure in lead zirconate titanate ceramics in the course of polarization fatigue is investigated by piezoresponse force microscopy. It is found that fatigue results in a strong modification of the domain structure. The domain patterns initially consisting of mainly 180° domains split into fine ferroelastic domains to relieve the mechanical stresses arising due to the continuous polarization switching. The observed distorted domain walls (or “wavy” domain patterns) are attributed to clamping by defect agglomerates. The biggest concentration of clamped domains is found in grains close to the electrode interface signifying that these are most damaged by fatigue. Furthermore, a preferred polarization orientation is observed near the electrodes. Postannealing of fatigued samples promotes the partial recovery of the initial domain structure. The results indicate the importance of nearby electrode grains in the polarization switching in polycrystalline materials.

48 citations

Journal ArticleDOI
TL;DR: In this paper, the authors presented a theoretical treatment of layered resonators based on the use of the Mason's model to derive the expression of the distributed-parameter electric impedance, followed by an approximation yielding a lumped-element equivalent circuit valid around the sensor fundamental resonance.
Abstract: Lead zirconate titanate (PZT) films screen-printed on alumina substrate form composite piezoelectric resonators that can be exploited as acoustic-wave mass sensors. The paper presents a theoretical treatment of such layered resonators based on the use of the Mason’s model to derive the expression of the distributed-parameter electric impedance, followed by an approximation yielding a lumped-element equivalent circuit valid around the sensor fundamental resonance. Expressions for the resonant frequency and mass sensitivity are obtained, which are validated by experimental results relative to PZT thick-film sensors. The model is of general applicability, provided that the PZT and substrate operate close to their quarter-wave resonance.

48 citations

Journal ArticleDOI
TL;DR: In this paper, lead zirconate titanate nanoparticles (PZT-NPs) were synthesized by a modified sol-gel method and were calcinated at temperatures of 600, 650 and 700 degrees C.

48 citations


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