Effects of temperature and flux on oxygen bubble formation in Li borosilicate glass under electron beam irradiation
- Laboratoire des Solides Irradies, Commissariat a l'Energie Atomique/Ecole Polytechnique, 91128 Palaiseau (France)
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 deg. C for the temperatures and between 10{sup 19} and 10{sup 21} e m{sup -2} s{sup -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{sub 2} as a function of the temperature and the electron flux.
- OSTI ID:
- 20788017
- Journal Information:
- Journal of Applied Physics, Vol. 99, Issue 7; Other Information: DOI: 10.1063/1.2189026; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM COMPOUNDS
BORON COMPOUNDS
BOROSILICATE GLASS
BUBBLES
CRYSTAL GROWTH
DIFFUSION
DISSOLUTION
ELECTRON BEAMS
ELECTRONS
EVOLUTION
IRRADIATION
KEV RANGE 100-1000
KINETICS
LITHIUM COMPOUNDS
OXYGEN
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TRANSMISSION ELECTRON MICROSCOPY