Projects per year
The self-organisation of void and gas bubbles in solids into superlattices is an intriguing nanoscale phenomenon. Despite the discovery of these lattices 45 years ago, the atomistics behind the ordering mechanisms responsible for the formation of these nanostructures are yet to be fully elucidated. Here we report on the direct observation via transmission electron microscopy of the formation of bubble lattices under He ion bombardment. By careful control of the irradiation conditions, it has been possible to engineer the bubble size and spacing of the superlattice leading to important conclusions about the significance of vacancy supply in determining the physical characteristics of the system. Furthermore, no bubble lattice alignment was observed in the <111> directions pointing to a key driving mechanism for the formation of these ordered nanostructures being the two-dimensional diffusion of self-interstitial atoms.
|Number of pages||8|
|Early online date||10 Aug 2017|
|Publication status||Published - 10 Aug 2017|
FingerprintDive into the research topics of 'Engineering self-organising helium bubble lattices in tungsten'. Together they form a unique fingerprint.
- Department of Engineering and Technology - Senior Research Fellow
- School of Computing and Engineering
- Ion Beam Centre - Member
- 2 Finished
A Study of the Combined Effects of Displacement Damage and Helium Accumulation in Model Nuclear Materials
1/02/15 → 31/08/18
World Class Materials Facilities at the University of Huddersfield
Ball, A., Donnelly, S., Vishnyakov, V., Hinks, J. & Greaves, G.
1/04/15 → 31/03/16