A grain boundary phase transition in Si-Au
Date of this Version
3-2012Citation
Scripta Materialia Volume 66, Issue 5, March 2012, Pages 203–206
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. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Discipline(s)
Nanoscience and Nanotechnology