The Cahn-Hilliard and Ginzburg-Landau (Allen-Cahn) equations are derived from the second law. The intuitive approach of separation of full divergences is supported by a more rigorous method, based on Liu procedure and a constitutive entropy flux. Thermodynamic considerations eliminate the necessity of variational techniques and explain the role of functional derivatives.
|Title of host publication||Advanced Structured Materials|
|Number of pages||16|
|Publication status||Published - Jan 1 2018|
|Name||Advanced Structured Materials|
ASJC Scopus subject areas
- Materials Science(all)