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The Effect of Displacement Cascades on Small Helium Bubbles in Aluminum and Gold

Published online by Cambridge University Press:  16 February 2011

S E. Donnelly ,
R.C. Birtcher ,
C. Templier ,
R. Valizadeh  and
V. Vishnyakov
S E. Donnelly
Affiliation:
Joule Laboratory, Science Research Institute, University of Salford, M5 4WT, UK
R.C. Birtcher
Affiliation:
Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, USA
C. Templier
Affiliation:
Laboratoire de Métallurgie Physique, University of Poitiers, 86022 Poitiers, France
R. Valizadeh
Affiliation:
Joule Laboratory, Science Research Institute, University of Salford, M5 4WT, UK
V. Vishnyakov
Affiliation:
Joule Laboratory, Science Research Institute, University of Salford, M5 4WT, UK
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Abstract

The evolution of individual helium bubbles in thin foils of gold and aluminum irradiated with 400 keV Ar+ and 200 keV Xe+ has been followed with in-situ transmission electron microscopy for a comparison between the effects of dilute (Al) and dense (Au) collision cascades. Bubble shrinkage in Al has been attributed to direct displacement of the gas out of the bubbles. Effects in Au, include the disappearance and Brownian motion of bubbles under irradiation, and are consistent with thermal spike processes seen in molecular dynamics simulations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 373: Symposium Y – Microstructure of Irradiated Materials , 1994 , 243
Copyright
Copyright © Materials Research Society 1995

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References

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