Studtite Formation Assessed by Raman Spectroscopy and 18O Isotopic Labeling during the Oxidative Dissolution of a MOX Fuel

Autor: Sylvain Peuget, Caroline Marques, Sandrine Miro, Magaly Tribet, Lola Sarrasin, Véronique Broudic, C. Jégou

Publikováno v: Journal of Physical Chemistry C
Journal of Physical Chemistry C, 2021, 125 (35), pp.19209-19218. ⟨10.1021/acs.jpcc.1c04392⟩

The authors thank the technicians from DHA-Atalante facility who strongly participated to this experiment: Loïck Chauvin,Nathalie Vaissières, Manuel Delaville and Maxime Fagard.; International audience; The formation of studtite has been studied du

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3263edd1bd67b338053796f245fff3b6
https://doi.org/10.1021/acs.jpcc.1c04392

Short communication on the Influence of the temperature between 30 and 70°C on the hydration of SON68 nuclear waste glass in a vapour phase

Autor: C. Jégou, Frédéric Angeli, Sathya Narayanasamy

Publikováno v: Journal of Nuclear Materials
Journal of Nuclear Materials, 2021, 545, pp.152738-. ⟨10.1016/j.jnucmat.2020.152738⟩
Journal of Nuclear Materials, Elsevier, 2021, 545, pp.152738-. ⟨10.1016/j.jnucmat.2020.152738⟩

The hydration of SON68 glass (non-radioactive surrogate for R7T7 glass, the French industrial glass for high-level radioactive waste management) was studied at between 30 and 70°C at a relative humidity of 95% for a period of 6 months. The hydration

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bc6f2147db42460a51643c5551ab731
https://hal.science/hal-03492794/document

Raman imaging and principal component analysis-based data processing on uranium oxide ceramics

Autor: Guillaume Guimbretière, Lionel Desgranges, Mohamed-Ramzi Ammar, O. A. Maslova, Patrick Simon, Aurélien Canizares, C. Jégou

Publikováno v: Materials Characterization
Materials Characterization, Elsevier, 2017, 129, pp.260-269. ⟨10.1016/j.matchar.2017.05.015⟩
Materials characterization. 2017. Vol. 129. P. 260-269
Materials Characterization, 2017, 129, pp.260-269. ⟨10.1016/j.matchar.2017.05.015⟩

A ceramic sample of uranium dioxide is probed by Raman imaging followed by a combined Lorentzian fitting – Principal Component Analysis process. This allows to evidence structural or chemical inhomogeneities of the material, which affect Raman line

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a4d4fec500e203375fc0bbc8cf90174
https://doi.org/10.1016/j.matchar.2017.05.015

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

Quantification of irradiation-induced defects IN UO2 using Raman and positron annihilation spectroscopies

Autor: C. Jégou, Patrick Simon, O. Cavani, Pierre Desgardin, Marie-France Barthe, Aurélien Canizares, C. W. He, B. Boizot, R. Mohun, Lionel Desgranges, Florian Duval

Publikováno v: Acta Materialia
Acta Materialia, Elsevier, 2019, 164, pp.512-519. ⟨10.1016/j.actamat.2018.10.044⟩
Acta Materialia, 2019, 164, pp.512-519. ⟨10.1016/j.actamat.2018.10.044⟩

International audience; In UO2, Raman spectroscopy has recently put into evidence the existence of a specific signature, referred to as the triplet defect bands, which is characteristic to irradiation damages. In this work, we perform a detailed expe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e32b059cc3605e1ea8919f51e4d28bd4
https://hal-insu.archives-ouvertes.fr/insu-01918996/document