Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/123709
Title: MODELING AND SIMULATIONS FOR SOLID-STATE DEWETTING PROBLEMS IN TWO DIMENSIONS
Authors: WANG YAN
Keywords: solid-state dewetting, surface diffusion, contact line migration, thermodynamic variation, anisotropy, equilibrium construction
Issue Date: 7-Jan-2016
Citation: WANG YAN (2016-01-07). MODELING AND SIMULATIONS FOR SOLID-STATE DEWETTING PROBLEMS IN TWO DIMENSIONS. ScholarBank@NUS Repository.
Abstract: Solid-state dewetting of thin films is a spontaneous physical phenomenon, describing the rupture of large continuous thin films and the formation of small agglomerates. In this thesis, we propose mathematical models and numerical methods for simulating solid-state dewetting problems in two dimensions, considering different film/vapor interfacial anisotropies and rigid substrates. The models and the corresponding boundary conditions are derived rigorously via a thermodynamic variational approach. We implement the models by either a ?marker particle'' method based on an explicit finite difference scheme or a semi-implicit parametric finite element method. Extensive numerical results are presented in this work, and they capture many of the complexities associated with real solid-state dewetting experiments.
URI: http://scholarbank.nus.edu.sg/handle/10635/123709
Appears in Collections:Ph.D Theses (Open)

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