Author： Yang W. Wang R. Feuerbacher M. Schall P. Urban K.
Publisher： Taylor & Francis Ltd
ISSN： 1362-3036
Source： Philosophical Magazine Letters, Vol.80, Iss.5, 2000-05, pp. : 281-288
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Abstract
A technique for the determination of the full six-dimensional Burgers vector characterizing a dislocation in an icosahedral quasicrystal is presented. It is based on the lattice-fringe analysis of two high-resolution transmission electron microscopy images taken at two different sample orientations. As an example we present the analysis of a dislocation in a bent icosahedral Al-Pd-Mn quasicrystal. We obtained a Burgers vector B = A0[-2,0,3,-2,3,0] where A0 = 0.645nm is the six-dimensional hyperlattice constant. This result is consistent with previous results obtained by diffraction contrast analysis and convergent-beam electron diffraction techniques.
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