Effects of temperature and flux on oxygen bubble formation in Li borosilicate glass under electron beam irradiation

N. Ollier 1 Giancarlo Rizza 1 Bruno Boizot 1 Guillaume Petite 1
1 LSI - UMR 7642 - Laboratoire des Solides Irradiés
Abstract : Oxygen bubble formation and evolution under a 300 keV electron beam are analyzed in a Li borosilicate glass under different irradiation conditions: temperature, flux, and dose. Oxygen bubbles are observed to form in a delimited flux and temperature region with a threshold requirement. This region ranges between 100 and 300 degrees C for the temperatures and between 10(19) and 10(21) e m(-2) s(-1) for the electron fluxes. In situ transmission electron microscopy allows the bubble evolution kinetics to be described as a four-step process. An incubation step is followed by a growth phase of sigmoid type. For high values of temperature and/or flux the saturation growth and the subsequent dissolution of the bubbles are also observed. The bubble evolution kinetics can be explained by considering the production and diffusion mechanisms of the molecular oxygen O-2 as a function of the temperature and the electron flux.
Keywords : NUCLEAR-WASTE GLASSES BETA-IRRADIATION SPECTROSCOPY BOMBARDMENT
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Article dans une revue
Journal of Applied Physics, American Institute of Physics, 2006, 99 (7), pp.073511. 〈10.1063/1.2189026〉
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Contributeur : Gaëlle Bruant <>
Soumis le : mercredi 26 novembre 2014 - 13:57:50
Dernière modification le : jeudi 18 octobre 2018 - 16:40:06

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N. Ollier, Giancarlo Rizza, Bruno Boizot, Guillaume Petite. Effects of temperature and flux on oxygen bubble formation in Li borosilicate glass under electron beam irradiation. Journal of Applied Physics, American Institute of Physics, 2006, 99 (7), pp.073511. 〈10.1063/1.2189026〉. 〈hal-01087610〉

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