ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Temperature effects for crystal growth: a distribution kinetics approach

Madras, Giridhar and McCoy, Benjamin J (2003) Temperature effects for crystal growth: a distribution kinetics approach. In: Acta Materialia, 51 (7). pp. 2031-2040.

[img] PDF
Temperature_effects.pdf
Restricted to Registered users only

Download (130Kb) | Request a copy

Abstract

The effect of temperature on the growth and dissolution dynamics of nonequilibrium crystal size distributions can be determined by solving the governing population balance equations. The model includes the effect of temperature through the diffusion-influenced growth coefficient, the phase transition energy, and the Gibbs–Thomson effect of particle curvature and interfacial energy. The time evolution of the average size of two polymorphs evolving from a single solute is also modeled. We show that the average sizes of the two polymorphs diverge, one continuing to increase, the other decreasing with time, indicating dynamic ripening. Strategies that allow temperature programming suggest how competing crystal or grain growth processes can be controlled.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Crystal growth models;Polymorphic phase transformation;Diffusion;Kinetics;Effect of temperature
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 01 Jun 2006
Last Modified: 19 Sep 2010 04:28
URI: http://eprints.iisc.ernet.in/id/eprint/7283

Actions (login required)

View Item View Item