Crystallographic dissolution of high purity aluminium
E.V Koroleva, G.E Thompson, P Skeldon, B Noble
Source record
Source: Crossref
Published: May 1, 2007
DOI: 10.1098/rspa.2007.1846
Open original source ↗Source abstract
Alkaline etching of high purity aluminium has been examined using the complementary techniques of scanning electron microscopy and atomic force microscopy. Provision of specific grain orientations, generated by zone melting, has revealed dissolution rates of individual grains which decrease in the order {334}>{225}>{119}. Further, the faceting of the {334} grain, which has an orientation close to (111), reveals the crystallographic nature of alkaline etching of high purity aluminium, with the limited presence of discrete cathodic sites. For the {119} grain orientation, distinct faceting is replaced by a cellular texture that is elongated in the 〈120〉 direction. The {225} grain reveals cells elongated in the 〈111〉 direction, with step-like features present across the surface. These step features are explained by dissolution along preferred crystallographic directions to reveal facets of low-energy planes of appropriate separation and associated steps.
Evidence graph
No public relationships recorded yet.
Integrity note: This page is a factual metadata record created by deterministic ingestion. It is not a claim that the work moves a mathematical frontier or has been independently verified.