| 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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Kumar, Abhishek
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Microwave-assisted synthesis, characterization, and <i>in vitro</i> biological evaluation of a novel nanocomposite using molybdenum and [2,2′-bipyridine]-4,4′-dicarboxylic acidcitations
- 2024Integrated model calibration for anisotropy, hardening and rupture - Application to the clinching process
- 2024Development and Validation of a Questionnaire to Measure a Medical Student’s Interest in the Subject of Community Medicine
- 2024Castor‐oil derived polyurethane/barium titanate piezoelectric smart composite coatings for energy harvesting applications: Prediction and experimental characterization of electro‐elastic propertiescitations
- 2022Strengthening adhesion of polycarbazole films on ITO surface by covalent electrografting of monomercitations
- 2022High sensing potentialities of tetra-tert-butyl-metallophthalocyaninesbased acoustic microsensors for xylenes measurement in air at room temperature
- 2021Photon assisted-inversion of majority charge carriers in molecular semiconductors-based organic heterojunctionscitations
- 2020Molecular Engineering of Porphyrin‐Tapes/Phthalocyanine Heterojunctions for a Highly Sensitive Ammonia Sensorcitations
- 2020Synthesis of PMN-PT/PDMS Piezoelectric Composite for Energy Harvesting
- 2019Microwave Absorption Performance of Graphene Nanoplatelets Dispersed SiCcitations
- 2018Comparative Study of Pure Mg and AZ91D as Sacrificial Anodes for Reinforced Cement Concrete Structures in Chloride Atmospherecitations
- 2018Influence of substrate on molecular order for self-assembled adlayers of CoPc and FePccitations
- 2017Synthetic Calcium Silicate Hydrates
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article
Castor‐oil derived polyurethane/barium titanate piezoelectric smart composite coatings for energy harvesting applications: Prediction and experimental characterization of electro‐elastic properties
Abstract
<jats:title>Abstract</jats:title><jats:sec><jats:label/><jats:p>Sustainable and environment‐friendly polymer composite smart paints/coatings with polyurethane (PU) derived from castor‐oil (CO) as the matrix and barium titanate (BTO) microparticles as piezo‐active inclusions (2, 4, 6, 8, and 10 vol.%) have been prepared employing ultrasonication and solvent casting, followed by contact DC poling method. Relative dielectric constants varied from 5.26 ± 0.37 for pristine COPU to 8.9 ± 0.36 for COPU/10 vol.% BTO composite, at a frequency of 1 kHz. Piezoelectric strain constant <jats:italic>d</jats:italic><jats:sub><jats:italic>33</jats:italic></jats:sub> of the poled films varied from 0.0 pC/N for pristine castor‐oil based polyurethane (COPU) to 1.2 pC/N for COPU/10 vol.% BTO (CPBT‐5) composite. Tensile tests showed that the elastic modulus varied from 1.98 ± 0.003 MPa for pristine COPU to 5.13 ± 0.02 MPa for COPU/10 vol.% BTO composite. Dynamic mechanical analysis confirmed the viscoelastic nature of the smart paints. Measurement of current–voltage response under different compressive loads indicates that COPU/10 vol.% BTO composite can generate a current of ~28 nA and voltage of ~8 V under a dynamic compressive load of 40 N, applied at a frequency of 1 Hz. These experiments were complemented by Fourier transform infra‐red spectroscopy and scanning electron microscopy. In addition, finite element analyses based on periodic boundary conditions have been performed to predict the effective electro‐elastic properties of these piezoelectric smart composite coatings.</jats:p></jats:sec><jats:sec><jats:title>Highlights</jats:title><jats:p><jats:list list-type="bullet"> <jats:list-item><jats:p>Castor‐oil‐based PU piezoelectric composites with BTO inclusions were developed.</jats:p></jats:list-item> <jats:list-item><jats:p>Increase in BTO content up to 10 vol.% increases dielectric constant by ~1.7 times.</jats:p></jats:list-item> <jats:list-item><jats:p>COPU/BTO composites exhibit significantly increased piezoelectric response.</jats:p></jats:list-item> <jats:list-item><jats:p>Elastic and viscoelastic properties are also enhanced with increasing BTO content.</jats:p></jats:list-item> <jats:list-item><jats:p>Finite element models show a good match with experimental results.</jats:p></jats:list-item> </jats:list></jats:p></jats:sec>