Insights into the UO2+x/U4O9 phase characterization in oxidized UO2 pellets as a function of hyper-stoichiometry

Autor: C. Gaillard, H. Lotz, L. Sarrasin, Y. Pipon, R. Ducher, N. Moncoffre

Publikováno v: Frontiers in Nuclear Engineering, Vol 3 (2024)

We present new insights into the study of the UO2+x/U4O9 equilibrium in UO2 as a function of the hyper-stoichiometry (x) by coupling HERFD-XANES at the uranium M4-edge with micro-Raman spectroscopy mapping. XANES allowed the measurement of uranium sp

Externí odkaz: https://doaj.org/article/c82dd551700f49d586c3e1dc9fbce006

Glass colourations caused by Mn-Fe redox pair : Application to ancient glass technology

Autor: S. Rossano, V. Khomenko, A. Bedidi, C. Muller, C. Loisel, J. Ferrand, L. Sarrasin, A. Bertin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b1c14b52cd481c56407e34e442af152
https://hal.archives-ouvertes.fr/hal-03764603

Influence of temperature and electronic stopping power of UO2 irradiated with swift ions on Mo migration

Autor: L. Sarrasin, Patrick Simon, N. Bérerd, R. Dubourg, Nathalie Moncoffre, Y. Pipon, Clotilde Gaillard, R. Ducher, D. Mangin

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2018, ⟨10.1016/j.nimb.2017.12.020⟩

Molybdenum migration was studied in polycrystalline UO2 pellets under irradiation with swift ions. 95Mo isotope was introduced in the samples by ion implantation at a maximum concentration of 0.8 at.%. Irradiation conditions were chosen in order to u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62aa78dd6971ca6748b8e56a650ee7d1
https://doi.org/10.1016/j.nimb.2017.12.020

Effect of the Oxygen Potential on the Mo Migration and Speciation in UO$_2$ and UO$_{2+x}$

Autor: R. Ducher, L. Sarrasin, D. Mangin, Clotilde Gaillard, R. Dubourg, C. Panetier, N. Moncoffre, Y. Pipon

Publikováno v: Inorg.Chem.
Inorg.Chem., 2019, 58 (8), pp.4761-4773. ⟨10.1021/acs.inorgchem.8b03076⟩
Inorganic Chemistry
Inorganic Chemistry, American Chemical Society, 2019, 58 (8), pp.4761-4773. ⟨10.1021/acs.inorgchem.8b03076⟩

Molybdenum is an abundant element produced by fission in the nuclear fuel UO2 in a pressurized water reactor. Although its radiotoxicity is low, this element has a key role on the fuel oxidation and other fission products migration, in particular in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ce26f098a9cd7987f8a7ebb8e0801f1
https://hal.archives-ouvertes.fr/hal-02116819

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.