Contacts for the MIR topic : Aurélien Debelle, Frédérico Garrido, Aurélie Gentils, Stéphanie Jublot-Leclerc, Jérôme Roques

Research activities description

The Materials and IRradiation (MIR) research topic of IJCLab is focusing on materials for energy applications (mostly nuclear energy), with a special emphasis put on the role played by ion beams, either to modify materials properties or to generate extreme irradiation conditions, for fundamental studies related to Solid State Chemistry and Physics.

A pertinent application of ion beams is the simulation of radiation effects in materials that could be placed in severe radiative environments. This topic concerns the qualification of the nuclear fuel, the matrices used for the confinement and/or transmutation of nuclear waste (fission products, actinides), and the evaluation of structural and fuel cladding materials for nuclear reactors of the next generations (Gen IV and fusion). Such experiments are based on the possibility to use ions of various masses at energies ranging from a few tens of keV up to a few hundreds of MeV, covering thus a broad stopping power range. They allow for example the simulation of radiation effects due to the uranium fission by using swift heavy ions, or the disintegration of actinides by using low energy heavy ions and MeV alpha particles, or the simulation of light gas injection in fission and fusion energy reactors. Low energy ion beams are also used for ion beam synthesis of materials: ions are incorporated into a solid matrix and a subsequent thermal annealing usually favors the out-of-equilibrium formation of nano-precipitates following the typical ion beam synthesis scheme.

For all these studies, the investigation of the fundamental mechanisms of ion-solid interactions applied to materials science is central, and it represents a vast research field in which some basic questions remain to be elucidated, in particular by coupling advanced experiments and modelling.

PhD theses in progress

  • Vinicius Oliveira Cavalcanti (since October 2019, PHENIICS doctoral school funding) : Etude de l’accumulation d’hélium aux interfaces oxyde-fer dans des matériaux pour les réacteurs de fusion nucléaire, Université Paris-Saclay
  • Mohamed El-Bakouri (since April 2020, MITI funding) : Approche intégrée couplant expériences, simulations et modélisations pour une meilleure compréhension des effets d’irradiation dans les matériaux, Université Paris-Saclay
  • Gabriel Bouhali (since November 2020, IJCLab funding): Influence combinée des effets d’irradiation et de l’injection de gaz sur l’évolution microstructure de céramiques d’intérêt nucléaire, Université Paris-Saclay
  • Mathis Hitier (since Octobre 2021, NEEDS R3C funding): Impact of irradiation on the chemical durability of U1-xThxO2 and U1-xCexOsintered samples

Recent defended PhD thesis

  • Marie-José Saleh-Afif. Formation de la phase alpha prime sous irradiation dans des aciers renforcés par dispersion d’oxydesCEA funding, Université Paris-Saclay, 2021 
  • Dee Jay Cerico. Evolution et modélisation des dommages induits par la désintégration alpha dans l’apatite, PHENIICS doctoral school funding, Université Paris-Saclay, 2021
  • Xin JinCombining RBS/Channeling, X-ray diffraction and atomic-scale modelling to study irradiation-induced defects and microstructure changes, Université Paris-Saclay and Université de Limoges funding, Université de Limoges, 2021
  • Marion BricoutComportement du dioxyde d’uranium sous irradiation: effet couplé de l’endommagement nucléaire et des excitations électroniques, CEA funding, Université Paris-Saclay, 2020
  • Olga Emelianova. Modeling gas-driven microstructural evolution in ODS-EUROFER steel by high dose helium and hydrogen ion implantation, French Embassy at Moscow and NRNU MEPhI fundings, Joint thesis NRNU MEPhI and Université Paris-Saclay, 2020
  • Martin Owusu-Mensah. Understanding the first formation stages of (Y,Ti) nano-oxides in Oxide Dispersion Strengthened (ODS) steels, PHENIICS doctoral school funding, Université Paris-Saclay, 2019

Recent articles

● S. Jublot-Leclerc, G. Bouhali, F. Pallier, A. Declémy, Temperature dependence of elastic strain and damage build-up in He implanted AlN, Journal of the European Ceramic Society 41 (2021) 259 doi

● O. Emelyanova, A. Gentils, V.A. Borodin, M.G. Ganchenkova, P.V. Vladimirov, P.S. Dzhumaev, I.A. Golovchanskiy, R. Lindau, A. Möslang, Bubble-to-void transition promoted by oxide nanoparticles in ODS-EUROFER steel ion implanted to high He content, Journal of Nuclear Materials 545 (2021) 152724 doi

● M. Bricout, C. Onofri, A. Debelle, Y. Pipon, R.C. Belin, F. Garrido, F. Leprêtre, G. Gutierrez, Radiation damage in uranium dioxide: coupled effet between electronic and nuclear energy losses, Journal of Nuclear Materials 531 (2020) 151967 doi

● X. Jin, A. Boulle, A. Chartier, J.-P. Crocombette, A. Debelle, Analysis of strain and disordering kinetics based on combined RBS-channeling and X-ray diffraction atomic-scale modelling, Acta Materialia 201 (2020) 63 doi

● K. Ma, B. Décamps, A. Fraczkiewicz, T. Jourdan, F. Prima, M. Loyer-Prost, Free surface impact on radiation damage in pure nickel by in situ self-ion irradiation: can it be avoided ? Acta Materialia 212 (2021) 116874 doi

● L. Thomé, G. Gutierrez, I. Monnet, F. Garrido, A. Debelle, Ionization-induced annealing in silicon upon dual beam irradiation, Journal of Materials Science 55 (2020) 5938 doi