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Kinetic States of Order in Highly Nonequilibrium Materials

Fultz, Brent (1992) Kinetic States of Order in Highly Nonequilibrium Materials. In: Ordering and Disordering in Alloys. Springer Netherlands , Dordrecht, pp. 31-42. ISBN 9781851667628.

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Two concepts from the kinetic theory of disorder→order transformations are presented. Kinetics provides control over the path taken en route to equilibrium, permitting different types of microstructures to be synthesized. Variations in microstructural evolution can be parameterized by two or more order parameters. “Kinetic paths” through two or more order parameters are convenient for experimental study because they are independent of the vacancy concentration in the material. Saddle points in the free energy surface have little consequence to the thermodynamic state, but if an alloy approaches a saddle point its kinetic evolution tends to stall. This stalled state is an example of a “pseudostable” state.

Item Type:Book Section
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Fultz, Brent0000-0002-6364-8782
Additional Information:© Elsevier Science Publishers Ltd 1992. I am delighted to acknowledge stimulating conversations with R. Kikuchi, T. Mohri, J. Sanchez, D. de Fontaine, P. Cenedese, L. Anthony, and K. Wada. With such colleagues, science cannot be dull. Theoretical work on pseudostability was supported by a Grant for International Research from NEDO, Japan. This work was supported by the U. S. Department of Energy under contract DE-FG03-86ER45270.
Funding AgencyGrant Number
New Energy and Industrial Technology Development Organization (NEDO)UNSPECIFIED
Department of Energy (DOE)DE-FG03-86ER45270
Subject Keywords:Saddle Point; Free Energy Surface; Pair Variable; Mossbauer Spectrometry; Pair Approximation
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105828
Deposited By: George Porter
Deposited On:06 Oct 2020 14:28
Last Modified:16 Nov 2021 18:46

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