Theoretical description of slow non-monotonic relaxation processes in Al–Y melts

M.G. Vasin, S.G. Menshikova and M.D. Ivshin

Physica A: Statistical Mechanics and its Applications, 2016, vol. 449, issue C, 64-73

Abstract: The slow non-monotonic relaxation processes, which have been recently fixed in Al–Y melts, are described theoretically. The theoretical description is based on the Cahn–Hilliard theory and functional methods of non-equilibrium dynamics. In terms of the suggested approach the reasons of this relaxation kinetics are non-linearity of the system near to the liquidus line, which sharply increases with Y concentration, and strong initial heterogeneity of the melt on the concentration of Y atoms. According to our analysis one can conclude that the non-monotonic temporal dependence of viscosity is caused by the Ostwald ripening processes in the rich in yttrium areas.

Keywords: Relaxation; Glass-forming melts; Non-equilibrium dynamics (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:449:y:2016:i:c:p:64-73

DOI: 10.1016/j.physa.2015.12.085

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