|Title||Modelling the effect of composition on the stability of equilibrium intergranular films with diffuse interfaces|
|Publication Type||Book Chapter|
|Year of Publication||2000|
|Authors||Bishop, CM, Carter, WCraig|
|Editor||Carter, CB, Hall, EL, Nutt, SR, Briant, CL|
|Book Title||Interfacial Engineering for Optimized Properties Ii|
|Pagination||75 - 79|
Current understanding of the equilibrium thickness of interfacial films derives from models which balance a steric repulsion against an attractive force between abutting crystals such as the van der Waals forces . Recent experimental observations indicate that, a) film thickness is a non-monotonic function of additions of impurities and b) impurities are non-uniformly distributed in the interfacial phases and triple junctions . We have developed a model which couples the steric terms which affect the equilibrium thickness with composition for a semi-finite film in equilibrium with a chemical reservoir at a fixed composition.