On a Penrose-Fife model with zero interfacial energy leading to a phase-field system of relaxed Stefan type
A variational formulation of a system of phase-field equations (which are regarded as a limiting case of the Penrose-Fife model for diffusive phase transitions) is introduced. One obtains a relaxed Stefan-type problem. Existence (and uniqueness for some special boundary conditions) of a weak solution is proved.
scientific article; zbMATH DE number 878433