Experimental observations of small-angle grain boundaries in the Al 70 Co 15 Ni 15 decagonal quasicrystal
- 1 November 1992
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Letters
- Vol. 66 (5) , 253-258
- https://doi.org/10.1080/09500839208219041
Abstract
According to the characteristics of the dislocations of which the small-angle grain boundaries consist, three kinds of small-angle grain boundary have been observed in annealed Al70Co15Ni15 decagonal phase for the first time by transmission electron microscopy: A tilt boundary consisting of an edge-dislocation wall; a twist boundary consisting of parallel screw-dislocation pairs; a small-angle grain boundary consisting of a dislocation network.Keywords
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