The presence of atomic oxygen at internal metal-ceramic oxide interfaces significantly affected the physical properties of the interfaces which in turn affected the bulk properties of the material. This problem was addressed for the model composite system Ag-MgO from a phenomenological point of view using a lattice-based Monte Carlo method and a finite element method extended with special user-subroutines. The time dependence of oxygen depth and contour profiles were simulated. Very good agreement between these two methods was demonstrated.

Modeling of Oxygen Diffusion and Segregation at Interfaces in Ag-MgO Composites. I.V.Belova, A.Öchsner, N.Muthubandara, G.E.Murch: Defect and Diffusion Forum, 2007, 266, 29-38