The influence of spatial and temporal averaging on interpretation of HRTEM images of solid-liquid interfaces

TitleThe influence of spatial and temporal averaging on interpretation of HRTEM images of solid-liquid interfaces
Publication TypeJournal Article
Year of Publication2013
AuthorsMoorthy SKE, Mendelev MI, Howe JM
Journal TitleUltramicroscopy
Volume124
Pages40-45
Date Published01
Type of ArticleArticle
ISBN Number0304-3991
Accession NumberWOS:000311823700007
Keywordsaberration, atomic-structure, CRYSTALS, grain-boundary, HRTEM image simulation, model, order, Order parameter, solid-liquid interface, Spatial, systems, temporal averaging, TRANSMISSION ELECTRON-MICROSCOPY
Abstract

The effects of spatial and temporal averaging on high-resolution transmission electron microscope (HRTEM) images and associated intensity profiles of a solid-liquid Al interface were investigated using atomic coordinates obtained from molecular dynamics simulations. It was found that intensity profiles obtained by spatial averaging across the solid-liquid interface capture the variation in structural features nearly as well as time-averaged intensity profiles. This suggests that adequate spatial averaging of a single HRTEM image can be used to study the contrast from interfaces, and thereby, the structural details, without the need for more time-consuming, computer-intensive time averaged analyses. The limitations of this method are also discussed. (C) 2012 Elsevier B.V. All rights reserved.

URL<Go to ISI>://WOS:000311823700007
DOI10.1016/j.ultramic.2012.08.013
Alternate JournalUltramicroscopy