Title
Simultaneous measurement of tracer and interdiffusion coefficients: an isotopic phenomenological diffusion formalism for the binary alloy
Abbreviated Journal Title
Philos. Mag.
Keywords
diffusion; SIMS; theoretical; VACANCIES; TRANSPORT; SOLIDS; Materials Science, Multidisciplinary; Mechanics; Metallurgy &; Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter
Abstract
In this paper, a new development of the classic Onsager phenomenological formalism is derived using relations based on linear response theory. The development concerns the correct description of the fluxes of the atomic isotopes. The resulting expressions in the laboratory frame are surprisingly simple and consist of terms coming from the standard interdiffusion expressions and from Fick's first law, where the tracer diffusion coefficient is involved thus providing a better understanding of the relationship between the two approaches - Fick's first law and the Onsager phenomenological formalism. From an experimental application perspective, the new development is applied to the binary alloy case. The formalism provides the means to obtain the interdiffusion coefficient and tracer diffusion coefficients simultaneously from analysis of the interdiffusion composition profiles in a single experiment.
Journal Title
Philosophical Magazine
Volume
93
Issue/Number
26
Publication Date
1-1-2013
Document Type
Article
Language
English
First Page
3515
Last Page
3526
WOS Identifier
ISSN
1478-6435
Recommended Citation
"Simultaneous measurement of tracer and interdiffusion coefficients: an isotopic phenomenological diffusion formalism for the binary alloy" (2013). Faculty Bibliography 2010s. 3690.
https://stars.library.ucf.edu/facultybib2010/3690
Comments
Authors: contact us about adding a copy of your work at STARS@ucf.edu