Plastic Flow Induced by Single Ion Impacts on Gold
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
The formation of holes in thin gold foils as a result of single ion impacts by 200keV Xe ions has been followed using transmission electron microscopy. Video recording provided details of microstructure evolution with a time resolution of 1/30th sec. Hole formation involves the movement by plastic flow of massive amounts of material, on the order of tens of thousands of Au atoms per ion impact. Plastic flow, as a consequence of individual ion impacts, results in a continual filling of both holes and craters as well as a thickening of the gold foil. Changes in morphology during irradiation is attributed to a localized, thermal-spike induced melting, coupled with plastic flow of effected material under the influence of surface forces. {copyright} {ital 1996 The American Physical Society.}
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 397669
- Journal Information:
- Physical Review Letters, Vol. 77, Issue 21; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
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