| 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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Tinti, Victor Buratto
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Assessment of High-Temperature Oxidation Properties of 316L Stainless Steel Powder and Sintered Porous Supports for Potential Solid Oxide Cells Applicationscitations
- 2024Oxygen-defective electrostrictors for soft electromechanicscitations
- 2024Oxygen-defective electrostrictors for soft electromechanicscitations
- 2024Non-classical electrostriction in calcium-doped cerium oxide ceramicscitations
- 2024Non-classical electrostriction in calcium-doped cerium oxide ceramicscitations
- 2024Enhanced Mechanical and Electromechanical Properties of Compositionally Complex Zirconia Zr 1- x (Gd 1/5 Pr 1/5 Nd 1/5 Sm 1/5 Y 1/5 ) x O 2-δ Ceramicscitations
- 2024Enhanced Mechanical and Electromechanical Properties of Compositionally Complex Zirconia Zr1-x(Gd1/5Pr1/5Nd1/5Sm1/5Y1/5)xO2-δ Ceramicscitations
- 2021Low-temperature synthesis of bismuth titanate by modified citrate amorphous methodcitations
- 2021Gigantic electro-chemo-mechanical properties of nanostructured praseodymium doped ceriacitations
Places of action
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article
Enhanced Mechanical and Electromechanical Properties of Compositionally Complex Zirconia Zr1-x(Gd1/5Pr1/5Nd1/5Sm1/5Y1/5)xO2-δ Ceramics
Abstract
Compositionally complex oxides (CCOs) or high-entropy oxides (HEOs) are new multielement oxides with unexplored physical and functional properties. In this work, we report fluorite structure-derived compositionally complex zirconia with composition Zr<sub>1-<i>x</i></sub>(Gd<sub>1/5</sub>Pr<sub>1/5</sub>Nd<sub>1/5</sub>Sm<sub>1/5</sub>Y<sub>1/5</sub>)<sub><i>x</i></sub>O<sub>2-δ</sub> (<i>x</i> = 0.1 and 0.2) synthesized in solid-state reaction route and sintered via hot pressing at 1350 °C. We explore the evolution of these oxides' structural, microstructural, mechanical, electrical, and electromechanical properties regarding phase separation and sintering mechanisms. Highly dense ceramics are achieved by bimodal mass diffusion, composing nanometric tetragonal and micrometric cubic grains microstructure. The material exhibits an anomalously large electrostriction response exceeding the M<sub>33</sub> value of 10<sup>-17</sup> m<sup>2</sup>/V<sup>2</sup> at room temperature and viscoelastic properties of primary creep in nanoindentation measurement under fast loading. These findings are strikingly similar to those reported for doped ceria and bismuth oxide derivates, highlighting the presence of a large concentration of point defects linked to structural distortion and anelastic behavior, which are characteristics of nonclassical ionic electrostrictors.