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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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Guillon, Olivier
RWTH Aachen University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Enabling High-Performance Hybrid Solid-State Batteries by Improving the Microstructure of Free-Standing LATP/LFP Composite Cathodes
- 2024Blacklight sintering of garnet-based composite cathodes
- 2024Enabling High-Performance Hybrid Solid-State Batteries by Improving the Microstructure of Free-Standing LATP/LFP Composite Cathodes.citations
- 2024Correlative characterization of plasma etching resistance of various aluminum garnetscitations
- 2024Correlative characterization of plasma etching resistance of various aluminum garnets
- 2024Delithiation-induced secondary phase formation in Li-rich cathode materials
- 2024Space charge governs the kinetics of metal exsolutioncitations
- 2024Direct Precursor Route for the Fabrication of LLZO Composite Cathodes for Solid‐State Batteries
- 2024Tooling in Spark Plasma Sintering Technology: Design, Optimization, and Applicationcitations
- 2023Role of Fe/Co Ratio in Dual Phase Ce0.8Gd0.2O2−δ–Fe3−xCoxO4 Composites for Oxygen Separationcitations
- 2023Kinetics and Pore Formation of the Sodium Metal Anode on NASICON‐Type Na$_{3.4}$ Zr$_2$Si$_{2.4}$P$_{0.6}$O$_{12}$ for Sodium Solid‐State Batteries
- 2023Enhanced metal exsolution at the non-polar (001) surfaces of multi-faceted epitaxial thin filmscitations
- 2023Creep and Superplasticity of Gadolinium-Doped Ceria Ceramics under AC Electric Current
- 2023Enabling metal substrates for garnet-based composite cathodes by laser sintering
- 2023Optimizing the Composite Cathode Microstructure in All‐Solid‐State Batteries by Structure‐Resolved Simulations
- 2023Oxide ceramic electrolytes for all-solid-state lithium batteries – cost-cutting cell design and environmental impactcitations
- 2022Rapid thermal processing of garnet-based composite cathodescitations
- 2022Kinetics and Pore Formation of the Sodium Metal Anode on NASICON‐Type Na$_{3.4}$ Zr$_2$Si$_{2.4}$P$_{0.6}$O$_{12}$ for Sodium Solid‐State Batteriescitations
- 2022Rapid thermal sintering of screen-printed LiCoO2 filmscitations
- 2021Optimization of sintering conditions for improved microstructural and mechanical properties of dense Ce0.8Gd0.2O2-δ-FeCo2O4 oxygen transport membranescitations
- 2021Injection Molding and Near-Complete Densification of Monolithic and Al2O3 Fiber-Reinforced Ti2AlC MAX Phase Compositescitations
- 2020The grain‐boundary resistance of CeO 2 ceramics: A combined microscopy‐spectroscopy‐simulation study of a dilute solutioncitations
- 2020Microstructure, ionic conductivity and mechanical properties of tape-cast Li1.5Al0.5Ti1.5P3O12 electrolyte sheetscitations
- 2019Topological optimization of patterned silicon anode by finite element analysiscitations
- 2011Constrained sintering of glass films: Microstructure evolution assessed through synchrotron computed microtomographycitations
- 2005New considerations about the fracture mode of PZT ceramicscitations
Places of action
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article
Creep and Superplasticity of Gadolinium-Doped Ceria Ceramics under AC Electric Current
Abstract
Shaping of dense ceramics is difficult due to their inherent brittleness. Nanograined ceramics like tetragonal zirconia (TZP) can be superplastically deformed and shaped at high temperatures owing to grain boundary sliding (GBS). Herein, the enhanced plasticity of gadolinium-doped ceria (GDC) ceramics under mild and strong AC electric current in terms of steady state creep rate under both compressive and tensile loading is demonstrated. A current density of 25 and 200 mA mm −2 is used for the creep deformation. The creep rate increases by up to two orders of magnitude under electric current. The stress exponent remains unchanged for creep experiments at 1200 °C with and without electric current, suggesting a GBS mechanism of plastic deformation in both cases. The field-enhanced creep rate is attributed to the interaction of space–charge layer and the electric field resulting in enhanced GBS. A higher current density results in enhanced ductility of GDC even when the Joule heating effect is compensated by reducing the furnace temperature.