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Mono and sequential ion irradiation induced damage formation and damage recovery in oxide glasses: Stopping power dependence of the mechanical properties

Mir, Anamul H.J., Monnet, I., Toulemonde, M., Bouffard, S., Jegou, C. and Peuget, S. (2016) Mono and sequential ion irradiation induced damage formation and damage recovery in oxide glasses: Stopping power dependence of the mechanical properties. Journal of Nuclear Materials, 469. pp. 244-250. ISSN 0022-3115

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Abstract

Simple and complex borosilicate glasses were irradiated with single and double ion beams of light and heavy ions over a broad fluence and stopping power range. As a result of the heavy ion irradiation (U, Kr, Au), the hardness was observed to diminish and saturate after a decrease by 35 ± 1%. Unlike slow and swift heavy ion irradiation, irradiation with light ions (He,O) induced a saturation hardness decrease of 18 ± 1% only. During double ion beam irradiation; where glasses were first irradiated with a heavy ion (gold) and then by a light ion (helium), the light ion irradiation induced partial damage recovery. As a consequence of the recovery effect, the hardness of the pre-irradiated glasses increased by 10–15% depending on the chemical composition. These results highlight that the nuclear energy loss and high electronic energy loss (≥4 keV/nm) result in significant and similar modifications whereas light ions with low electronic energy loss (≤1 keV/nm) result in only mild damage formation in virgin glasses and recovery in highly pre-damaged glasses. These results are important to understand the damage formation and recovery in actinide bearing minerals and in glasses subjected to self-irradiation by alpha decays.

Keywords

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Computing and Engineering
Related URLs:
Depositing User: Anamul Haq Mir
Date Deposited: 13 Dec 2016 16:22
Last Modified: 13 Dec 2016 16:22
URI: http://eprints.hud.ac.uk/id/eprint/30364

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