Structure determination and structure refinement of Al2CuMg precipitates by quantitative high-resolution electron microscopy

The structure of the S-phase (Al2CuMg) precipitate in an Al matrix has been determined by using a combination of image processing, quantitative image comparison, and automatic refinement of imaging and structural parameters. A method for comparing images with unknown origin relationship while quickl...

Full description

Saved in:
Bibliographic Details
Published in:Ultramicroscopy 2001-06, Vol.88 (1), p.63-72
Main Authors: KILAAS, Roar, RADMILOVIC, Velimir
Format: Article
Language:English
Subjects:
Alloys
ALUMINIUM ALLOYS
Applied sciences
Clusters, nanoparticles, and nanocrystalline materials
Condensed matter: structure, mechanical and thermal properties
COPPER ALLOYS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
Exact sciences and technology
MAGNESIUM ALLOYS
MATERIALS SCIENCE
Metals. Metallurgy
Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
Physics
PRECIPITATION
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The structure of the S-phase (Al2CuMg) precipitate in an Al matrix has been determined by using a combination of image processing, quantitative image comparison, and automatic refinement of imaging and structural parameters. A method for comparing images with unknown origin relationship while quickly estimating a possible translation of the origin is outlined. The optimization algorithm used in the structure determination utilizes space group symmetry, which is deduced from the crystal-zone axis and reduces the number of free parameters.
ISSN:0304-3991
1879-2723
DOI:10.1016/S0304-3991(00)00107-8