Monday, May 22

Domain Coarsening Dynamics - Part I of II

10:00 AM-12:00 PM
Room: Liberty A

For Part II, see MS11.

Ostwald ripening or coarsening is the phenomenon of the growth of typical particle size in the last stage of many phase transformations. To understand the dynamics is essential for many applications such as the aging of precipitation-hardened alloys. The classical LSW model for dilute systems predicts a universal longtime behavior that is difficult to distinguish in experiments. Moreover, one wants to understand systems with higher volume fraction as well as additional effects such as elasticity and noise. The speakers in this minisymposium will discuss theory and experiment. They will share recent developments in the modeling of Ostwald ripening and in the mathematical analysis of dynamics in these models and the approximations they involve.

Organizers: Barbara Niethammer
Universität Bonn, Germany
Robert L. Pego
University of Maryland, College Park, USA
10:00-10:25 A Mean-Field Formulation for Stochastic Effects in Phase Coarsening
Steven P. Marsh, Naval Research Laboratory, USA; Martin E. Glicksman and K. G. Wang, Rensselaer Polytechnic Institute
10:30-10:55 Stochastic Effects in Phase Coarsening Kinetics
Martin E. Glicksman and K. G. Wang., Rensselaer Polytechnic Institute, USA; and S. P. Marsh, Naval Research Laboratory, USA
11:00-11:25 The Effect of Kinetic Effects and Stochastic Fluctuations in Coarsening Dynamics
Juan J. L.Velazquez, Universidad Complutense, Spain
11:30-11:55 Motion of Boundaries by Discretized Mean Curvature in 2D and 3D Coarsening Models
Elizabeth A. Holm, Sandia National Laboratories, Albuquerque, USA; and Mark A. Miodownik, University College, Ireland

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