Atomic dynamics in decagonal Al–Ni–Co quasicrystals
The atomic dynamics of decagonal Al–Ni–Co quasicrystals are investigated by molecular dynamics simulations. The model structures used consist of an alternating stacking of two layers, which are decorations of a hexagon-boat-star tiling. Apart from small relaxations, these model structures are essent...
Saved in:
| Published in: | Journal of non-crystalline solids Vol. 334; no. Complete; pp. 308 - 311 |
|---|---|
| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Elsevier B.V
15-03-2004
|
| Subjects: | |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The atomic dynamics of decagonal Al–Ni–Co quasicrystals are investigated by molecular dynamics simulations. The model structures used consist of an alternating stacking of two layers, which are decorations of a hexagon-boat-star tiling. Apart from small relaxations, these model structures are essentially stable up to the melting point. Above two thirds of the melting temperature, a large fraction of the aluminium atoms becomes mobile, and long-range atomic diffusion sets in, without destroying the overall structure. The diffusion of aluminium is analyzed as a function of temperature and pressure, and the microscopic diffusion processes are discussed. |
|---|---|
| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0022-3093 1873-4812 |
| DOI: | 10.1016/j.jnoncrysol.2003.11.063 |