Work

Doubly degenerate diffuse interface models of anisotropic surface diffusion

Year: 2020

Type: article

Abstract: We extend the doubly degenerate Cahn–Hilliard (DDCH) models for isotropic surface diffusion, which yield more accurate approximations than classical degenerate Cahn–Hilliard (DCH) models, to the anisotropic case. We consider both weak and strong anisotropies and demonstrate the capabilities of the approach for these cases numerically. The proposed model provides a variational and energy dissipative approach for anisotropic surface diffusion, enabling large‐scale simulations with material‐specific parameters.

Source: Mathematical Methods in the Applied Sciences

DOI: 10.1002/mma.7118

Authors: Marco Salvalaglio, Maximilian Selch, Axel Voigt, Steven M. Wise

Institutions: Dresden Center for Computational Materials Science, Technische Universität Dresden, University of Tennessee at Knoxville

Language: English

Topic: Solidification and crystal growth phenomena

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,700

Funders: National Science Foundation, Technische Universität Dresden, Horizon 2020 Framework Programme