Title

Diffusion under temperature gradient: A phase-field model study

Authors

Authors

R. R. Mohanty; J. E. Guyer;Y. H. Sohn

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Appl. Phys.

Keywords

alloys; Monte Carlo methods; thermal diffusion; thermodynamics; THERMAL DIFFUSION; CONSTITUENT REDISTRIBUTION; ZR ALLOYS; CARBON; SYSTEM; THERMOMIGRATION; THERMOTRANSPORT; TRANSPORT; SOLIDS; IRON; Physics, Applied

Abstract

A diffuse interface model was devised and employed to investigate the effect of thermotransport (a.k.a., thermomigration) process in single-phase and two-phase alloys of a binary system. Simulation results show that an applied temperature gradient can cause significant redistribution of constituent elements and phases in the alloy. The magnitude and the direction of the redistribution depend on the initial composition, the atomic mobility and the heat of transport of the respective elements. In two-phase alloys, the thermomigration effect can cause the formation of single-element rich phases at the cold and hot ends of the alloy (i.e., demixing).

Journal Title

Journal of Applied Physics

Volume

106

Issue/Number

3

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

7

WOS Identifier

WOS:000269060700104

ISSN

0021-8979

Share

COinS