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Particle Coarsening in Multiphase Ternary Systems

Published online by Cambridge University Press:  15 February 2011

W.C. Holmes  and
J.J. Hoyt
W.C. Holmes
Affiliation:
Physics Department, Taylor University, Upland, IN 46989, [email protected]
J.J. Hoyt
Affiliation:
Computational Materials Science Department, Sandia National Laboratories, Livermore, CA 94551-9161, [email protected]
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Abstract

Particle Coarsening in ternary, multiphase -multicomponent, systems is quite different than its binary counterpart in that the presence of one phase can affect the coarsening behavior of another. We have shown by analytic analysis and numerical simulation that the interaction between two coexisting phases depends on: solution thermodynamics, diffusivities, and equilibrium concentration differences between matrix and precipitate phases. Therefore, different ternary systems create different cross phase interactions which affect coarsening behavior. For example, spatial correlations between the two coarsening phases are a strong function of this interaction and can lead to spatial ordering between the two phases. Also, specific ternary systems can produce kinetic instabilities and pattern formation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 580: Symposium E – Nucleation & Growth Processes in Materials , 1999 , 315
Copyright
Copyright © Materials Research Society 2000

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