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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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Bagot, Paul
University of Oxford
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2024Atom Probe Tomography Investigation of Clustering in Model P2O5-Doped Borosilicate Glasses for Nuclear Waste Vitrification
- 2022PosgenPy: An Automated and Reproducible Approach to Assessing the Validity of Cluster Search Parameters in Atom Probe Tomography Datasetscitations
- 2020Element segregation and α2 formation in primary α of a near-α Ti-alloy
- 2018Understanding corrosion and hydrogen pickup of zirconium fuel cladding alloys:The role of oxide microstructure, porosity, suboxides, and second-phase particlescitations
- 2018Understanding corrosion and hydrogen pickup of zirconium fuel cladding alloyscitations
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article
Atom Probe Tomography Investigation of Clustering in Model P2O5-Doped Borosilicate Glasses for Nuclear Waste Vitrification
Abstract
Atom Probe Tomography (APT) has been utilised to investigate the microstructure of two model borosilicate glasses designed to understand the solubility limits of phosphorous pentoxide (P2O5). This component is found in certain high-level radioactive defence wastes destined for vitrification, where phase separation can potentially lead to a number of issues relating to the processing of the glass and its long-term chemical and structural stability. Development of suitable Focused Ion Beam (FIB)-preparation routes and APT analysis conditions were initially determined for the model glasses, before examining their detailed microstructures. In a 3.0 mol% % P2O5-doped glass, both visual inspection and sensitive statistical analysis of the APT data shows homogeneous microstructures, while raising the content to 4.0 mol% initiates formation of phosphorus-enriched nanoscale precipitates. This study confirms expected inhomogeneities and phase separation of these glasses, and offers routes to characterising these at near-atomic scale resolution using APT.