@article{2271cf711e4640a9a69b37d49a7f30b2,
title = "Domain wall-grain boundary interactions in polycrystalline Pb(Zr0.7Ti0.3)O3 piezoceramics",
abstract = "Interactions between grain boundaries and domain walls were extensively studied in ferroelectric films and bicrystals. This knowledge, however, has not been transferred to polycrystalline ceramics, in which the grain size represents a powerful tool to tailor the electromechanical and dielectric response. Here, we relate changes in dielectric and electromechanical properties of a bulk polycrystalline Pb(Zr0.7Ti0.3)O3 to domain wall interactions with grain boundaries. Samples with grain sizes in the range of 3.9–10.4 μm were prepared and their microstructure, crystal structure, and dielectric/electromechanical properties were investigated. A decreasing grain size was accompanied by a reduction in large-signal electromechanical properties and an increase in small-signal relative permittivity. High-energy diffraction analysis revealed increasing microstrains upon decreasing the grain size, while piezoresponse force microscopy indicated an increased local coercive voltage near grain boundaries. The changes in properties were thus related to strained material volume close to the grain boundaries exhibiting reduced domain wall dynamics.",
keywords = "Diffraction, Domain wall dynamics, Grain size, Piezoelectric, PZT",
author = "J. Schulthei{\ss} and S. Checchia and H. Ur{\v s}i{\v c} and T. Fr{\"o}mling and Daniels, {J. E.} and B. Mali{\v c} and T. Rojac and J. Koruza",
note = "Funding Information: This work was supported by the Deutsche Forschungsgemeinschaft (DFG) Grant No. 270195408 (KO 5100/1-1) and the Slovenian Research Agency (P2-0105). We are grateful to the ESRF for providing beamtime at ID15A. J.S. acknowledges the support of the Feodor Lynen Research Fellowship Program of the Alexander von Humboldt Society. Parts of the work were also supported by the DAAD through funds from the Bundesministerium f{\"u}r Bildung und Forschung (BMBF) Grant No. 57402439 and the Slovenian Research Agency through the bilateral project PR-08298 (contract number BI-DE/18-19-007). We are grateful to S. Drnov{\v s}ek for preparing the samples. Funding Information: This work was supported by the Deutsche Forschungsgemeinschaft (DFG) Grant No. 270195408 (KO 5100/1-1) and the Slovenian Research Agency ( P2-0105 ). We are grateful to the ESRF for providing beamtime at ID15A. J.S. acknowledges the support of the Feodor Lynen Research Fellowship Program of the Alexander von Humboldt Society . Parts of the work were also supported by the DAAD through funds from the Bundesministerium f{\"u}r Bildung und Forschung (BMBF) Grant No. 57402439 and the Slovenian Research Agency through the bilateral project PR-08298 (contract number BI-DE/18-19-007). We are grateful to S. Drnov{\v s}ek for preparing the samples. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2020",
month = sep,
doi = "10.1016/j.jeurceramsoc.2020.03.054",
language = "English",
volume = "40",
pages = "3965--3973",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier B.V.",
number = "12",
}