Departmental Papers (MSE)

Document Type

Journal Article

Date of this Version

3-1-1993

Publication Source

Phyiscal Review B

Volume

47

Issue

10

Start Page

5571

Last Page

5582

DOI

10.1103/PhysRevB.47.5571

Abstract

The many-body empirical potentials that describe atomic interactions in the copper-bismuth system were constructed using both experimental data and physical quantities obtained by ab initio full-potential linear muffin-tin orbital calculations for a metastable Cu3Bi compound. These potentials were then used to calculate the structure of a grain boundary in copper containing bismuth, which was at the same time studied by high-resolution electron microscopy (HREM). Excellent agreement between the calculated and observed structures is shown by comparing a through-focal series of observed and calculated images. This agreement validates the constructed potentials, which can be used with a high confidence to investigate the structure and properties of other grain boundaries in this alloy system. Furthermore, this study shows, that HREM combined with computer modeling employing realistic empirical potentials can decipher with great accuracy the structure of boundaries containing multiple atomic species.

Copyright/Permission Statement

©1993 American Physical Society. All rights reserved.

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Date Posted: 25 May 2016

This document has been peer reviewed.