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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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Yildirim, Can
European Synchrotron Radiation Facility
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Effect of second-phase precipitates on deformation microstructure in AA2024 (Al–Cu–Mg): dislocation substructures and stored energycitations
- 2024Coupled local residual shear and compressive strain in NaNbO 3 ceramics under coolingcitations
- 2024Heterogeneous Antiferroelectric Ordering in NaNbO3-SrSnO3 Ceramics Revealed by Direct Superstructure Imaging
- 2024Heterogeneous Antiferroelectric Ordering in NaNbO 3 –SrSnO 3 Ceramics Revealed by Direct Superstructure Imaging
- 2024Coupled local residual shear and compressive strain in NaNbO3 ceramics under coolingcitations
- 2023Exploring 4D microstructural evolution in a heavily deformed ferritic alloycitations
- 2023Revealing 3D intragranular micromechanical fields at triple junctionscitations
- 2021Bulk heterogeneity in barium titanate above the Curie temperaturecitations
- 2021Dislocation-toughened ceramicscitations
- 2020Quantifying microscale drivers for fatigue failure via coupled synchrotron X-ray characterization and simulationscitations
- 2020Quantifying microscale drivers for fatigue failure via coupled synchrotron X-ray characterization and simulationscitations
- 2019Sub-surface measurements of the austenite microstructure in response to martensitic phase transformationcitations
- 2016Structure and Dynamics of Ge-Se Liquids and Glasses under Pressure
- 2016Universal amorphous-amorphous transition in Ge x Se 100−x glasses under pressurecitations
- 2016Universal amorphous-amorphous transition in GexSe100−x glasses under pressurecitations
- 2016Universal amorphous-amorphous transition in Ge x Se 100-x glasses under pressurecitations
- 2016Structure and Dynamics of Ge-Se Liquids and Glasses under Pressure ; La structure et la dynamique des liquides et des verres chalcogénures sous pression
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article
Heterogeneous Antiferroelectric Ordering in NaNbO3-SrSnO3 Ceramics Revealed by Direct Superstructure Imaging
Abstract
<p>NaNbO<sub>3</sub>-based antiferroelectric materials offer a promising pathway toward greener and more cost-effective energy storage devices. However, their intrinsic structural instabilities often lead to reduced energy density that compromises their performance and longevity. In this letter, we demonstrate how Dark-Field X-ray Microscopy─when carried out on the characteristically weak 1/4{843}<sub>pc</sub> superstructure reflection─can map the antiferroelectric phase and its strain heterogeneity in small, deeply embedded grains of a NaNbO<sub>3</sub> and 0.95NaNbO<sub>3</sub>-0.05SrSnO<sub>3</sub> ceramics, representative of different phase transition behavior. Our results illustrate the stabilizing effect of SrSnO<sub>3</sub> on the antiferroelectric phase via the enhancement of mesostructural order. In doing so, our method establishes a new platform for exploring the impact of disorder on the long-range strain heterogeneity within antiferroelectrics and other materials with modulated crystal structures.</p>