Search Results - "Claparède, Laurent"

Impact of ruthenium metallic particles on the dissolution of UO2 in nitric acid by Kaczmarek, Thibault, Szenknect, Stéphanie, Claparède, Laurent, Cabié, Martiane, Le Goff, Xavier, Mesbah, Adel, Podor, Renaud, Dacheux, Nicolas

“…UO 2 pellets incorporating 3 mol.% of Ru was prepared by using a wet chemistry route and then characterised. The speciation, morphology, as well as spatial…”
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Multiparametric Dissolution of Thorium–Cerium Dioxide Solid Solutions by Claparede, Laurent, Clavier, Nicolas, Dacheux, Nicolas, Mesbah, Adel, Martinez, Julien, Szenknect, Stéphanie, Moisy, Philippe

“…The dissolution of Th1–x Ce x O2 solid solutions samples prepared by thermal conversion of oxalate precursors was studied by varying independently several…”
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In Situ HT-ESEM Observation of CeO2 Grain Growth During Sintering by Podor, Renaud, Clavier, Nicolas, Ravaux, Johann, Claparede, Laurent, Dacheux, Nicolas

“…The CeO2 sintering and grain growth kinetics were determined from in situ experiments performed using an environmental scanning electron microscope (ESEM)…”
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Understanding the solid/liquid interface evolution during the dissolution of Nd-doped UO2 by macro-/microscopic dual approach by Barral, Thomas, Claparede, Laurent, Podor, Renaud, Dacheux, Nicolas

“…The chemical durability of Nd-doped UO2 samples was studied using an innovative macro-/microscopic dual approach method. The starting precursor was first…”
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Dissolution of Th$_{0.25}$U$_{0.75}$O$_2$ sintered pellets: Impact of nitrate ions and nitrous acid by Dalger, Thomas, Claparede, Laurent, Szenknect, Stéphanie, Moisy, Philippe, Dacheux, Nicolas

“…In order to gain insights on the kinetics of the dissolution of Gen(IV) MOX fuels, sintered pellets of Th$_{0.25}$U$_{0.75}$O$_2$ were prepared as surrogates…”
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In situ Raman monitoring of studtite formation under alpha radiolysis in $^{18}$O-labeled water by Perrot, Aurélien, Canizares, Aurélien, Miro, Sandrine, Claparede, Laurent, Podor, Renaud, Sauvage, Thierry, Peuget, Sylvain, Jegou, Christophe, Dacheux, Nicolas

“…Studtite [(UO$_2$)(O$_2$)(H$_2$O)$_2$]·2(H$_2$O) is a secondary phase precipitating during the alteration of uranium-bearing materials. The mechanistic link…”
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Dissolution of Th0.25U0.75O2 sintered pellets: Impact of nitrate ions and nitrous acid by Dalger, Thomas, Claparede, Laurent, Szenknect, Stéphanie, Moisy, Philippe, Dacheux, Nicolas

“…In order to gain insights on the kinetics of the dissolution of Gen(IV) MOX fuels, sintered pellets of Th0.25U0.75O2 were prepared as surrogates. Particularly,…”
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In situ Raman monitoring of studtite formation under alpha radiolysis in 18O-labeled water by Perrot, Aurélien, Canizares, Aurélien, Miro, Sandrine, Claparede, Laurent, Podor, Renaud, Sauvage, Thierry, Peuget, Sylvain, Jegou, Christophe, Dacheux, Nicolas

“…•An in situ Raman monitoring of isotopically-labeled studtite growth was performed.•The link between studtite formation mechanism and radiolysis effects was…”
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Influence of Sintering Conditions on the Structure and Redox Speciation of Homogeneous (U,Ce)O2+δ Ceramics: A Synchrotron Study by Massonnet, Malvina, Claparede, Laurent, Martinez, Julien, Martin, Philippe M., Hunault, Myrtille O.J.Y., Prieur, Damien, Mesbah, Adel, Dacheux, Nicolas, Clavier, Nicolas

“…Although uranium–cerium dioxides are frequently used as a surrogate material for (U,Pu)­O2−δ nuclear fuels, there is currently no reliable data regarding the…”
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Impact of the atmosphere on the sintering capability and chemical durability of Nd-doped UO2+x mixed oxides by Barral, Thomas, Bernar, Mickaël, Le Goff, Xavier F., Cabié, Martiane, Bazarkina, Elena F., Podor, Renaud, Kvashnina, Kristina O., Claparede, Laurent, Clavier, Nicolas, Dacheux, Nicolas

“…In this study, the influence of the working atmosphere on the sinterability and chemical durability of Nd-doped UO2 mixed oxides was investigated. To this end,…”
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Kinetics of dissolution of Th0.25U0.75O2 sintered pellets in various acidic conditions by Dalger, Thomas, Szenknect, Stéphanie, Tocino, Florent, Claparede, Laurent, Mesbah, Adel, Moisy, Philippe, Dacheux, Nicolas

“…In order to gain insights into the kinetics of dissolution of Gen(IV) MOX fuels, sintered pellets of Th0.25U0.75O2 were prepared as surrogates. The study of…”
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Effect of surface orientation on dissolution rate and surface dynamics of UO2 single crystals in nitric acid by Bertolotto, Solène, Szenknect, Stéphanie, Lalleman, Sophie, Magnaldo, Alastair, Raison, Philippe, Odorico, Michael, Podor, Renaud, Claparede, Laurent, Dacheux, Nicolas

“…[Display omitted] •UO2 single crystals with (100), (110) and (111) surfaces were dissolved in 2 M HNO3.•Two successive kinetic regimes were identified during…”
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Dissolution of Th1−xUxO2: Effects of chemical composition and microstructure by Claparede, Laurent, Tocino, Florent, Szenknect, Stéphanie, Mesbah, Adel, Clavier, Nicolas, Moisy, Philippe, Dacheux, Nicolas

“…Dissolution of Th1−xUxO2 samples in concentrated nitric acid showed that thorium enriched solid solutions follow the same trend than thoria while uranium…”
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Influence of Sintering Conditions on the Structure and Redox Speciation of Homogeneous (U,Ce)O 2+δ Ceramics: A Synchrotron Study by Massonnet, Malvina, Claparede, Laurent, Martinez, Julien, Martin, Philippe M, Hunault, Myrtille O J Y, Prieur, Damien, Mesbah, Adel, Dacheux, Nicolas, Clavier, Nicolas

“…Although uranium-cerium dioxides are frequently used as a surrogate material for (U,Pu)O nuclear fuels, there is currently no reliable data regarding the…”
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Impact of the cationic homogeneity on Th0.5U0.5O2 densification and chemical durability by Claparede, Laurent, Clavier, Nicolas, Mesbah, Adel, Tocino, Florent, Szenknect, Stéphanie, Ravaux, Johann, Dacheux, Nicolas

“…In order to study the effects of cationic homogeneity on the life cycle of Th1-xUxO2 ceramics, including sintering and reprocessing (dissolution) steps, five…”
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Influence of Crystallization State and Microstructure on the Chemical Durability of Cerium–Neodymium Mixed Oxides by Claparede, Laurent, Clavier, Nicolas, Dacheux, Nicolas, Moisy, Philippe, Podor, Renaud, Ravaux, Johann

“…To underline the potential links between the crystallization state and the microstructure of powdered cerium–neodymium oxides and their chemical durability,…”
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In Situ HT ‐ ESEM Observation of CeO 2 Grain Growth During Sintering by Podor, Renaud, Clavier, Nicolas, Ravaux, Johann, Claparede, Laurent, Dacheux, Nicolas

“…The CeO 2 sintering and grain growth kinetics were determined from in situ experiments performed using an environmental scanning electron microscope ( ESEM )…”
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Impact of the cationic homogeneity on Th^sub 0.5^U^sub 0.5^O^sub 2^ densification and chemical durability by Claparede, Laurent, Clavier, Nicolas, Mesbah, Adel, Tocino, Florent, Szenknect, Stéphanie, Ravaux, Johann, Dacheux, Nicolas

“…In order to study the effects of cationic homogeneity on the life cycle of Th1-xUxO2 ceramics, including sintering and reprocessing (dissolution) steps, five…”
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Impact of the cationic homogeneity on Th$_{0.5}$U$_{0.5}$O$_2$ densification and chemical durability by Claparede, Laurent, Clavier, Nicolas, Mesbah, Adel, Tocino, Florent, Szenknect, Stephanie, Ravaux, Johann, Dacheux, Nicolas

“…In order to study the effects of cationic homogeneity on the life cycle of Th$_{1-x}$U$_x$O$_2$ ceramics, including sintering and reprocessing (dissolution)…”
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Kinetics of dissolution of Th^sub 0.25^U^sub 0.75^O^sub 2^ sintered pellets in various acidic conditions by Dalger, Thomas, Szenknect, Stéphanie, Tocino, Florent, Claparede, Laurent, Mesbah, Adel, Moisy, Philippe, Dacheux, Nicolas

“…In order to gain insights into the kinetics of dissolution of Gen(IV) MOX fuels, sintered pellets of Th0.25U0.75O2 were prepared as surrogates. The study of…”
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