Dresden 2009 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 23: Topical Session Heterogeneous Nucleation and Initial Evolution of Microstructure - Poster

MM 23.10: Poster

Tuesday, March 24, 2009, 14:45–16:30, P4

Computer simulation studies of heterogeneous nucleation in the hard spheres and colloid-polymer mixtures. — •Tatyana Zykova-Timan¹, Juergen Horbach², and Kurt Binder¹ — ¹Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudinger Weg 7, 55099 Mainz — ²Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln

Using Monte Carlo simulations in NP(z)T ensemble a growth of the crystalline germ on the planar walls is modeled. Both hard spheres and colloid-polymer mixtures were considered. The latter was represented by one-component colloid system described by an effective Asakura-Oosawa potential. The repulsive interactions between the wall and colloids were tuned such that no wetting layer was allowed. We show how to stabilize the solid nucleus on the wall and analyze its morphology.