| 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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Abram, Timothy
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Development of high-temperature-steam Resistant UN via the addition of UB 2
- 2024Development of high-temperature-steam Resistant UN via the addition of UB2
- 2023Fabrication and thermal conductivity of UN-UB2 composites fabricated by spark plasma sinteringcitations
- 2022Development and Comparison of Field Assisted Sintering Techniques to Densify CeO2 Ceramicscitations
- 2020Steam Performance of UB2/U3Si2 Composite Fuel Pellets, Compared to U3Si2 Reference Behaviourcitations
- 2019A high density composite fuel with integrated burnable absorber: U3Si2-UB2citations
- 2018The use of gadolinium as a burnable poison within U 3 Si 2 fuel pelletscitations
- 2018The use of gadolinium as a burnable poison within U3Si2 fuel pelletscitations
- 2016Selective area laser deposition of FCC beta silicon carbide
- 2013The chemical durability of glass and graphite-glass composite doped with cesium oxidecitations
- 2012Thermal Analysis and Immobilisation of Spent Ion Exchange Resin in Borosilicate Glasscitations
- 2008Structure and mechanical properties of pyrolytic carbon produced by fluidized bed chemical vapor depositioncitations
Places of action
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article
The chemical durability of glass and graphite-glass composite doped with cesium oxide
Abstract
The role of temp. in detg. the chem. stability of a waste form, as well as its leach rate, is very complex. This is because the dissoln. kinetics is dependent both on temp. and possibility of different rate-controlling mechanisms that appear at different temp. regions. The chem. durability of Alumina-Borosilicate Glass (ABG) and Glass-Graphite Composite (GGC), bearing Tristructural Isotropic (TRISO) fuel particles impregnated with cesium oxide, were compared using a static leach test. The purpose of this study is to examine the chem. durability of glass-graphite composite to encapsulate coated fuel particles, and as a possible alternative for recycling of irradiated graphite. The test was based on the ASTM C1220-98 methodol., where the leaching condition was set at a temp. varying from 298 K to 363 K for 28 days. The release of cesium from ABG was in the permissible limit and followed the Arrhenius's law of a surface controlled reaction; its activation energy (Ea) was 65.6 ± 0.5 kJ/mol. Similar values of Ea were obtained for Boron (64.3 ± 0.5) and Silicon (69.6 ± 0.5 kJ/mol) as the main glass network formers. In contrast, the dissoln. mechanism of cesium from GGC was a rapid release, with increasing temp., and the activation energy of Cs (91.0 ± 5 kJ/mol) did not follow any model related to carbon kinetic dissoln. in water. Microstructure anal. confirmed the formation of Crystobalite SiO2 as a gel layer and Cs+1 valence state on the ABG surface. [on SciFinder(R)]