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The European Physical Journal Special Topics

, Volume 223, Issue 3, pp 497–509 | Cite as

A phase field crystal study of heterogeneous nucleation – application of the string method

  • R. BackofenEmail author
  • A. Voigt
Regular Article Metals as Model Systems
Part of the following topical collections:
  1. Heterogenous Nucleation and Microstructure Formation: Steps Towards a System and Scale Bridging Understanding

Abstract

We use the simplified string method in order to examine two dimensional heterogeneous nucleation at a wall and on a substrate. The material is described by a phase field crystal model and the influence of the wall or substrate is included by an external potential. Tuning the external potential we show that we can control the contact angle in equilibrium and misfit to a substrate. The nucleation barrier is reduced by a wall, but cannot be explained by classical nucleation theory due to non-classical nucleation paths. For small misfits a substrate also decreases the nucleation barrier, while large misfits increases the nucleation barrier.

Keywords

Contact Angle European Physical Journal Special Topic Liquid Phase Epitaxy External Potential Thermodynamic Force 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences and Springer 2014

Authors and Affiliations

  1. 1.Institut für Wissenschaftliches RechnenTU DresdenGermany

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