Cluster Kinetics of Phase Transitions: Applications to Innovative Technologies

McCoy, Benjamin J and Madras, Giridhar (2009) Cluster Kinetics of Phase Transitions: Applications to Innovative Technologies. In: Chemical Engineering Communications, 196 (1-2). pp. 204-233.

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Abstract

Phase transitions are critical in many of the new technologies of interest to chemical engineers. Applications to materials processing and pharmaceuticals manufacture are among the uses for phase transition dynamics investigated with the methods of population balance modeling for clustering processes. The underlying phenomenon of clustering occurs during condensation processes such as crystallization from solution.Self-assembly of molecules or supramolecules is likewise spontaneous clustering, often through non-covalent interactions. Vapor-liquid and solid–liquid condensations usually involve nucleation from a metastable state, accompanied by particulate growth and Ostwald ripening (with denucleation). The nucleation process is bypassed under certain conditions, such as in spinodal decomposition, glass transition, and gelation. It is proposed that the unifying concept for all these transformations is cluster kinetics and dynamics. Using population balance modeling, we outline how phase transition processes can be quantitatively modeled by cluster size distributions evolving in time. We also discuss how generic cluster processes apply to granular systems, synchronizing oscillators, and polymorphic transformations.

Item Type:	Journal Article
Publication:	Chemical Engineering Communications
Publisher:	Taylor and Francis Group
Additional Information:	Copyright of this article belongs to Taylor and Francis Group.
Keywords:	Continuous distribution kinetics;Crystal growth;Nucleation; Ostwald ripening;Phase transitions;Population balance equations.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	22 May 2009 06:14
Last Modified:	19 Sep 2010 04:53
URI:	http://eprints.iisc.ac.in/id/eprint/16772

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