Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499197 | Scripta Materialia | 2012 | 4 Pages |
Abstract
A grain boundary transition from a bilayer to an intrinsic (nominally clean) boundary is observed in Si–Au. An atomically abrupt transition between the two complexions (grain boundary stabilized phases) implies the occurrence of a first-order interfacial phase transition associated with a discontinuity in the interfacial excess. This observation supports a grain-boundary complexion theory with broad applications. This transition is atypical in that the monolayer complexion is absent. A model is proposed to explain the bilayer stabilization and the origin of this complexion transition.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shuailei Ma, Kaveh Meshinchi Asl, Chookiat Tansarawiput, Patrick R. Cantwell, Minghao Qi, Martin P. Harmer, Jian Luo,