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Physico-chemical analysis of compound growth in a diffusion couple with two-phase end-members

Paul, A and Kodentsov, AA and Loo, van FJJ (2006) Physico-chemical analysis of compound growth in a diffusion couple with two-phase end-members. In: Intermetallics, 14 (12). pp. 1428-1432.

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Abstract

A general treatment of a diffusion-controlled growth of a stoichiometric intermetallic in reaction between two two-phase alloys is introduced. A reaction couple, in which a layer of $Co_2Si$ is formed during interdiffusion from its adjacent saturated phases is used as a model system. On the basis of chemical reaction equations occurring at the interphase interfaces, data on relative mobilities of diffusing species and the integrated diffusion coefficient in the product phase are deduced. The analysis yields numerical results identical to those calculated from classical Wagner’s theory for the case in which the terminal phases of the diffusion couple are initially saturated.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: A. Silicides, various;B. Diffusion
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 21 Nov 2006
Last Modified: 19 Sep 2010 04:32
URI: http://eprints.iisc.ernet.in/id/eprint/8872

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