Explanation of peak shapes observed in diffraction from icosahedral quasicrystals
- 13 July 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 59 (2) , 221-224
- https://doi.org/10.1103/physrevlett.59.221
Abstract
The distinctive peak shapes observed in diffraction studies of the icosahedral phases of Al-Mn, Al-Li-Cu, and related alloys are shown to arise from a specific configuration of quenched phason strains in a grain. This configuration is determined by considerations of symmetry and continuity of the phason field. Al-Mn and Al-Li-Cu peak shapes are explained by minor variations of a single mechanism.Keywords
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