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Nanostructures may be exposed to irradiation during their manufacture, their engineering and whilst in-service. The consequences of such bombardment can be vastly different from those seen in the bulk. In this paper, we combine transmission electron microscopy with in situ ion irradiation with complementary computer modelling techniques to explore the physics governing the effects of 1.7 MeV Au ions on gold nanorods. Phenomena surrounding the sputtering and associated morphological changes caused by the ion irradiation have been explored. In both the experiments and the simulations, large variations in the sputter yields from individual nanorods were observed. These sputter yields have been shown to correlate with the strength of channelling directions close to the direction in which the ion beam was incident. Craters decorated by ejecta blankets were found to form due to cluster emission thus explaining the high sputter yields.
|Number of pages||10|
|Publication status||Published - 11 Jan 2018|
FingerprintDive into the research topics of 'Effects of crystallographic and geometric orientation on ion beam sputtering of gold nanorods'. Together they form a unique fingerprint.
- Department of Engineering and Technology - Professor
- School of Computing and Engineering
- Ion Beam Centre - Member
- Centre for Engineering Materials - Associate Member
- 1 Finished
Radiation Damage in Nanoporous Nuclear Materials
1/10/15 → 30/09/18