Paper Titles
Preface
Growth Kinetics on Nanoscale: Finite Diffusion Permeability of Interfaces
p.1
Diffusion Mechanisms in Nanocrystalline and Nanolaminated Au-Cu
p.13
Modelling of Oxygen Diffusion and Segregation at Interfaces in Ag-MgO Composites
p.29
Stability and Shrinkage by Diffusion in Hollow Nanotubes
p.39
A Molecular Dynamics Study of Self-Diffusion in the Core of a Screw Dislocation in Al
p.49
A Mathematical Formulation for Interfacial Diffusion, Incorporating Deviation from the Classical Random Walk Theory
p.63
First-Principles Computation of Transition-Metal Diffusion Mobility
p.73
An Examination of Diffusion Paths in Terms of Interdiffusion Fluxes and Interdiffusion Coefficients
p.83

Modelling of Oxygen Diffusion and Segregation at Interfaces in Ag-MgO Composites

Article Preview

Abstract:

The presence of atomic oxygen at internal metal-ceramic oxide interfaces significantly affects the physical properties of the interfaces which in turn affects the bulk properties of the material. This problem is 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. We simulate the time dependence of oxygen depth and contour profiles. We are able to show very good agreement between these two methods.

You might also be interested in these eBooks
Diffusion in Advanced Materials and Processing View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volume 266)

Pages:

29-38

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.266.29

Citation:

Cite this paper

Online since:

September 2007

Authors:

Irina V. Belova, Andreas Öchsner, Nilindu Muthubandara, Graeme E. Murch

Keywords:

Composite, Diffusion, Finite Element Model (FEM), Interface, Monte-Carlo, Segregation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] M. Stasiek, A. Öchsner and J. Grácio: Defect Diffusion Forum. Vol. 249 (2006), p.35.

Google Scholar

[2] I. Kaur, Y. Mishin and W. Gust, in Fundamentals of Grain and Interphase Boundary Diffusion, (Wiley; Chichester) (1995).

Google Scholar

[3] M. Stasiek, A. Öchsner and J. Grácio: J. Phase Equilibria and Diffusion, Vol. 27 (2006), p.644.

Google Scholar

[4] G.E. Murch and I.V. Belova: Interface Science, Vol. 11 (2003), p.91.

Google Scholar

[5] I.V. Belova and G.E. Murch: in Cellular and Porous Materials. Thermal Properties Simulation and Prediction, edited by A. Öchsner, G.E. Murch and J.S. de Lemos (Wiley - VCH; Weinheim) in press.

DOI: 10.1002/9783527621408

Google Scholar

[6] J. Crank, The Mathematics of Diffusion. (Clarendon Press; Oxford), (1975).

Google Scholar