C. Onofri
22 Papers
21 Citations
C. Onofri is an academic researcher. The author has contributed to research in topics: Irradiation & Dislocation. The author has an hindex of 8, co-authored 16 publications.
Chat about Author
Papers
Evolution of extended defects in polycrystalline UO2 under heavy ion irradiation: Combined TEM, XRD and Raman study
C. Onofri,C. Sabathier,Hervé Palancher,G. Carlot,Sandrine Miro,Y. Serruys,Lionel Desgranges,Marc Legros +7 more
TL;DR: In this article, the authors focused on the characteristics of extended defects created by Kr implantations in UO2 polycrystals, and the influence of many parameters on these extended defects has been studied separately: irradiation temperature, room temperature, 500 and 600 °C, ion fluence, ion energy, and conditions of subsequent thermal annealing.
44
Evolution of extended defects in polycrystalline Au-irradiated UO2 using in situ TEM: Temperature and fluence effects
TL;DR: In this paper, the authors show that dislocation loops, with Burgers vectors along the directions, evolve into dislocation lines with increasing fluence by a loop overlapping mechanism, and a fluence offset is highlighted between the irradiations performed at high and low temperature due to an increase of the defect mobility.
33
Extended defect change in UO2 during in situ TEM annealing
TL;DR: In situ thermal annealing up to 1400°C on pre-irradiated polycrystalline UO2 thin foils was performed inside a TEM for the first time as discussed by the authors.
27
Changes in voids induced by ion irradiations in UO2: In situ TEM studies
C. Onofri,C. Sabathier,G. Carlot,D. Drouan,C. Bachelet,Cédric Baumier,M. Gérardin,M. Bricout +7 more
TL;DR: In this paper, the void size and density in polycrystalline UO2 thin foils were studied in order to study the void change with damage, temperature (ranging from −180 to 1100 °C) and exogenous xenon atoms incorporation.
22
Effect of ballistic damage in UO2 samples under ion beam irradiations studied by in situ Raman spectroscopy
TL;DR: In this paper, the damage induced in uranium dioxide (UO2) during ion irradiation at low energy was studied by micro-Raman spectroscopy, where polycrystalline UO2 samples were irradiated by 0.9-meV I, 2-MeV Au at 25 °C and by 4MeV Kr ions at −160