General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DES-24-0169
Thesis topic details
Category
Condensed Matter Physics, chemistry, nanosciences
Thesis topics
Incorporation of U and Pu in nuclear glasses and impact on their long term behavior under water
Contract
Thèse
Job description
In order to stabilize its final high-activity waste, the Atalante facility plans to vitrify it on the VESPA platform implemented on the C18 shielded line. The glasses produced will be stored in the short term at the ATALANTE facility and are intended to be sent in the medium term to the French disposal facility, at the Bure site.
The calcination vitrification process of the VESPA platform will aim to produce sodium borosilicate glasses as close as possible to nuclear glasses used at the La Hague plant by Orano. These glasses will have to incorporate higher contents of uranium and plutonium (U and Pu) into their vitreous network than the glasses used industrially until now.
Therefore, to validate the proposed domain of chemical composition of the so-called “Atalante” glasses, the candidate will first have to study the limits of incorporation of U and Pu in UOX type glasses.
Once the chemical domain has been determined, a second part of the PhD thesis will be devoted to the study of the kinetics of alteration of glasses of interest under water and thus examine the impact of U and Pu concentrations on their long-term behavior properties.
The profile of the desired candidate is Master 2 level or equivalent in materials science. He/she must be rigorous, organized and present a strong interest in characterization techniques of solids or liquids as well as for the synthesis of materials. Experience in the glass and/or nuclear field would be a plus. This thesis will offer him/her the opportunity to develop skills in numerous characterization techniques and also experience of work in nuclear facility.
Master 2 materials science.
University / doctoral school
Sciences Chimiques Balard (EDSCB)
Montpellier
Thesis topic location
Site
Marcoule
Requester
Position start date
01/09/2024
Person to be contacted by the applicant
JOUAN Gauthier gauthier.jouan@cea.fr
CEA
DES/DPME//LMPA
Atalante BAT 166
DES/ISEC/DPME/SEME/LMPA
CEA Marcoule BP 17171
30207 Bagnols sur Cèze
0466397123
Tutor / Responsible thesis director
DESCHANELS Xavier xavier.deschanels@cea.fr
CEA
DEN/ICSM//LNAR
CEA Marcoule
ICSM/ Laboratoire des Nanomatériaux pour l’Energie et le Recyclage (LNER)
CEA Marcoule BP 17171
30207 Bagnols sur Cèze
0466796087
En savoir plus
https://www.linkedin.com/in/gauthier-jouan-02169839/
https://www.ustverre.fr/site/index.php?option=com_adirectory&view=adirectory&layout=item&id=33&Itemid=905&lang=fr