The six-jump cycle diffusion mechanism in non-stoichiometric B2 intermetallics: the vacancy-wind factor | NOVA. The University of Newcastle's Digital Repository

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/33552

Title: The six-jump cycle diffusion mechanism in non-stoichiometric B2 intermetallics: the vacancy-wind factor
Author/Creator: Belova, I. V.; Murch, G. E.
Institution: The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description: In this paper we explore the behaviour of the vacancy-wind factor or Manning factor for chemical diffusion in antistructurally disordered intermetallics taking the B2 structure. The analytical formalism is based on generalized six-jump- cycles providing the vehicles for diffusion of both components. Comparison of the analytical results is made with results from Monte Carlo calculations based only on single vacancy jumps. Very good agreement is found at low temperatures/ high levels of order where it can be anticipated that six-jump-cycles dominate the diffusion process. In such circumstances, a first (rough) approximation, it would be reasonable to put the vacancy-wind factor/Manning factor equal to 0.5 rather than unity as is often done.
Relation: Defect and Diffusion Forum Vol. 213-215, p. 95-106
Publisher Link: http://dx.doi.org/10.4028/3-908450-75-6
Date: 2003
Publisher: Trans Tech Publications
Keyword(s): 6-jump cycle; B2 intermetallics; vacancy-wind
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.13/33552
Identifier: ISSN:1012-0386

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