Paper Title:

Non-Random Interaction of Vacancies with Atoms during Interdiffusion and Ionic Conductivity in Materials

Periodical Defect and Diffusion Forum (Volume 266)
Main Theme Diffusion in Advanced Materials and Processing
Edited by Y.H. Sohn, C. Campbell, D. Lewis and A. Lupulescu
Pages 119-130
DOI 10.4028/www.scientific.net/DDF.266.119
Citation Irina V. Belova et al., 2007, Defect and Diffusion Forum, 266, 119
Online since September, 2007
Authors Irina V. Belova, Graeme E. Murch
Keywords Correlation Factors, Interdiffusion, Intrinsic Diffusion, Ionic Conductivity, Vacancy-Wind Effect
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The non-random interaction of vacancies with atoms during interdiffusion and ionic conductivity is referred to as the vacancy-wind effect. This effect, first discovered by the late Dr John Manning, is a subtle phenomenon arising from the non-random distribution of vacancies with respect to a given moving atom within a net flux of vacancies. Recently, a good deal of progress has been made in determining accurate expressions for vacancy-wind factors in binary and ternary alloys, and in mixed cation ionic systems. The present paper provides an overview of these recent findings and puts them into a broader and historical context.

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