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Diffusion Couple Technique: A Research Tool in Materials Science

Kodentsov, Alexander and Paul, Aloke (2017) Diffusion Couple Technique: A Research Tool in Materials Science. [Book Chapter]

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Official URL: https://doi.org/10.1016/B978-0-12-804548-0.00006-2


The diffusion couple technique is a unique and powerful experimental method which provides a framework to determine interdiffusion coefficients in solid solution systems and integrated diffusion coefficients for stoichiometric compounds.From simple marker experiments with incremental diffusion couples, information about relative mobilities of species in solid solution and intermetallic phases can be obtained, and tracer diffusion coefficients can be deduced if pertinent thermodynamic data are at hand. The diffusion couple technique is also a valuable approach in phase diagram studies and establishing composition-structure-property relationships in multicomponent systems.The efficiency of the method is very high. Yet, it is not without shortcomings. A number of error sources that may appear when the diffusion couple technique is used as "a research tool" are discussed in detail.

Item Type: Book Chapter
Publisher: Elsevier Inc.
Additional Information: The copyright for this article belongs to the Elsevier Inc.
Keywords: Diffusion couple; Electron probe microanalysis; Interdiffusion; Intermetallic compound; Intrinsic diffusion coefficient; Kirkendall effect; Microstructure; Phase equilibria
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 29 May 2022 08:43
Last Modified: 31 May 2022 00:48
URI: https://eprints.iisc.ac.in/id/eprint/72799

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