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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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Khanbareh, Hamideh
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Porous Structure Enhances the Longitudinal Piezoelectric Coefficient and Electromechanical Coupling Coefficient of Lead-Free (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3citations
- 2024Porous structure enhances the longitudinal piezoelectric coefficient and electromechanical coupling coefficient of lead‐free (Ba 0.85 Ca 0.15 )(Zr 0.1 Ti 0.9 )O 3citations
- 2024Temperature-Dependent Ferroelectric Properties and Aging Behavior of Freeze-Cast Bismuth Ferrite-Barium Titanate Ceramicscitations
- 2024Temperature-Dependent Ferroelectric Properties and Aging Behavior of Freeze-Cast Bismuth Ferrite–Barium Titanate Ceramicscitations
- 2024Exploring Lead-Free Materials for Screen-Printed Piezoelectric Wearable Devicescitations
- 2023Enhancing Neural Stem Cell Stimulation with Structured Piezoelectric Compositescitations
- 2022Innovative piezo-active composites and their structure - Property relationshipscitations
- 2022Piezoelectric materials and systems for tissue engineering and implantable energy harvesting devices for biomedical applicationscitations
- 2021Additively manufactured BaTiOcitations
- 2021Additively manufactured BaTiO3 composite scaffolds: a novel strategy for load bearing bone tissue engineering applicationscitations
- 2021Additively manufactured BaTiO3 composite scaffoldscitations
- 2020Harnessing Plasticity in an Amine-Borane as a Piezoelectric and Pyroelectric Flexible Filmcitations
- 2019Piezoelectric performance of PZT-based materials with aligned porosity::experiment and modellingcitations
- 2019Experimental studies on effective properties and related parameters of piezo-particulate composites
- 2019Piezo-active composites
- 2019Modified energy harvesting figures of merit for stress- and strain-driven piezoelectric systemscitations
- 2019Modelling of the composite structure formation during dielectrophoresis
- 2019Piezoelectric performance of PZT-based materials with aligned porosity:citations
- 2018Understanding the effect of porosity on the polarisation-field response of ferroelectric materialscitations
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article
Piezoelectric performance of PZT-based materials with aligned porosity:
Abstract
<p>A new micromechanical model is proposed to analyse the piezoelectric properties of freeze-cast porous composite materials based on a ferroelectric lead zirconate titanate-type (PZT) ceramics. The important influence of the composite microgeometry and the porous ceramic matrix on the piezoelectric coefficients d<sup>∗</sup> <sub>3j</sub> and g<sup>∗</sup> <sub>3j</sub> and the piezoelectric anisotropy factor d<sup>∗</sup> <sub>33</sub>/|d<sup>∗</sup> <sub>31</sub> in the porosity range of m<sub>p</sub> = 0.2-0.6 is evaluated and discussed. The resulting piezoelectric parameters of parallel-connected freeze-cast composites with highly aligned pore channels are then compared to those of PZT-based porous materials with randomly distributed porosity. Due to the relatively large piezoelectric coefficients d<sup>∗</sup> <sub>33</sub> ∼ 10<sup>2</sup> pC N<sup>-1</sup>, g<sup>∗</sup> <sub>33</sub> ≈ 40-100 mV m N<sup>-1</sup>, anisotropy factor d<sup>∗</sup> <sub>33</sub>/|d<sup>∗</sup> <sub>31</sub> ≈ 3-5 and the presence of aligned porous channels, the parallel-connected freeze-cast composite has advantages over conventional monolithic PZT-type ceramics (e.g. g <sub>33</sub> = 24.2 mV m N<sup>-1</sup> and d <sub>33</sub>/|d <sub>31</sub>| = 2.2 in the PZT-5 ceramic) and is suitable for piezoelectric transducer, sensor, acoustic, and energy-harvesting applications.</p>