| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Malic, Barbara
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Topics
Publications (9/9 displayed)
- 2022Piezoelectric thick film for power-efficient haptic actuatorcitations
- 2016Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectriccitations
- 2016Effect of Pore Size and Porosity on Piezoelectric and Acoustic Properties of Pb(Zr0.53Ti0.47)O3 Ceramicscitations
- 2014Simultaneous Enhancement of Fracture Toughness and Unipolar Strain in Pb(Zr,Ti)O-3-ZrO2 Composites Through Composition Adjustmentcitations
- 2014Evaluation of the homogeneity in Pb(Zr,Ti)O-3-zirconia composites prepared by the hetero-agglomeration of precursors using the Voronoi-diagram approachcitations
- 2013R-curves in transformation toughened lead zirconate titanate
- 2012Structure and the Electrical Properties of Pb(Zr,Ti)O-3 - Zirconia Compositescitations
- 2012Deconvolving Ferroelastic and Phase Transformation Toughening in Pb(Zr1-xTix)O-3 and Pb1-yLay(Zr1-xTix)O-3citations
- 2011Compositional Dependence of R-curve Behavior in Soft Pb(Zr1-xTix)O-3 Ceramicscitations
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article
Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectric
Abstract
Electromechanical properties such as d 33 and strain are significantly enhanced at morphotropic phase boundaries (MPBs) between two or more different crystal structures. Many actuators, sensors and MEMS devices are therefore systems with MPBs, usually between polar phases in lead (Pb)-based ferroelectric ceramics. In the search for Pb-free alternatives, systems with MPBs between polar and non-polar phases have recently been theorized as having great promise. While such an MPB was identified in rare-earth (RE) modified bismuth ferrite (BFO) thin films, synthesis challenges have prevented its realization in ceramics. Overcoming these, we demonstrate a comparable electromechanical response to Pb-based materials at the polar-to-non-polar MPB in Sm modified BFO. This arises from 'dual' strain mechanisms: ferroelectric/ferroelastic switching and a previously unreported electric-field induced transition of an anti-polar intermediate phase. We show that intermediate phases play an important role in the macroscopic strain response, and may have potential to enhance electromechanical properties at polar-to-non-polar MPBs.