Abstract
To understand the nickel–iron electrodeposition process better, we have developed a one-dimensional numerical model. This model addresses dissociation, diffusion, electromigration, convection and deposition of multiple ion species. The reaction mechanism in this model differs in that Ni2+ and Fe2+ are the electroactive species and NiOH+ and FeOH+ are not involved whatsoever. Taking account of the anisotropic behaviour of the solution we introduce a domain decomposition numerical method. Simulations with experimental data show that our model can predict characteristic features of the nickel–iron system.
Acknowledgements
This work was supported by the Action Integree program MA/02/33, the Agence universitaire de la Francophonie AUF and the Elie Cartan Institute (IECN) of the Henri Poincaré University.