| About this Abstract |
| Meeting |
Materials Science & Technology 2011
|
| Symposium
|
Interfaces, Grain Boundaries and Surfaces from Atomistic and Macroscopic Approaches -- Fundamental and Engineering Issues
|
| Presentation Title |
Controversies and Challenges in Interface Thermodynamics |
| Author(s) |
Y. Mishin |
| On-Site Speaker (Planned) |
Y. Mishin |
| Abstract Scope |
This talk will discuss some of the long-standing controversies and challenges existing in interface thermodynamics. Do the surface free energy and surface stress of solids have to converge near the melting point? Is the Shuttleworth equation correct and can it be generalized to phase boundaries in multicomponent systems? Is interface stress unique? Can interface free energy be negative? Can the Gibbs adsorption equation be generalized to coherent solid-solid interfaces subject to shear stresses? Does the Tolman correction fully capture the curvature dependence of the interface free energy? Can the adsorption equation be generalized to strongly curved interfaces? Is the contact-line free energy positive or negative? Is there a thermodynamic limit of possible superheating of solid surfaces and solid-solid interfaces? While no ready answers will be given to all of these questions, it seems worthwhile to pose them and discuss possible approaches to their solution. |
| Proceedings Inclusion? |
Definite: A CD-only volume |