Diffusion of Particles Adsorbed on a Patchwise Surface

Alexander Tarasenko

doi:10.4028/www.scientific.net/DDF.333.117

Paper Titles

The Influence of Yttrium on Kinetics and Mechanism of Chromia Scale Growth on Fe-Cr-Ni Base Steels
p.91

Magnetically Controlled Grain Boundary Migration and Microstructure Evolution in Zn
p.101

Microstructure and Mechanical Properties of Directionally Solidified Unmodified and Ni-Modified Sn-0.7wt%Cu Lead-Free Solder Alloy
p.107

Diffusion of Particles Adsorbed on a Patchwise Surface
p.117

Membrane Separation of CO₂from Natural Gas: A State-of-the-Art Review on Material Development
p.135

Effect of Grain Size on the High Temperature Oxidation Behaviour of Austenitic Stainless Steels
p.149

Mössbauer Spectroscopy of Internal Interfaces in Metals
p.157

Pseudopartial Grain Boundary Wetting: Key to the Thin Intergranular Layers
p.175

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 333Diffusion of Particles Adsorbed on a Patchwise...

Diffusion of Particles Adsorbed on a Patchwise Surface

Abstract:

The diﬀusion of particles adsorbed on a patchwise surface with two non-equivalentsites is investigated in the framework of the lattice-gas model. The coverage dependencies of thecenter-of-mass and Fickian diﬀusion coeﬃcients are calculated for some representative valuesof the lateral interaction. We propose the analytical expressions for the diﬀusion coeﬃcients.We compare the theoretical dependencies with the numerical data obtained by the kineticMonte Carlo simulations. The good coincidence of the data obtained by the two quite diﬀerentmethods corroborates strongly the approach developed to describe the particle migration onsuch complex, heterogeneous lattices.