ON MORPHOLOGICAL INSTABILITY DURING ELECTRODEPOSITION WITH A STAGNANTBINARY ELECTROLYTE

Citation
Lg. Sundstrom et Fh. Bark, ON MORPHOLOGICAL INSTABILITY DURING ELECTRODEPOSITION WITH A STAGNANTBINARY ELECTROLYTE, Electrochimica acta, 40(5), 1995, pp. 599-614
Citations number
18
Categorie Soggetti
Electrochemistry
Journal title
ISSN journal
00134686
Volume
40
Issue
5
Year of publication
1995
Pages
599 - 614
Database
ISI
SICI code
0013-4686(1995)40:5<599:OMIDEW>2.0.ZU;2-A
Abstract
For a metal deposition problem with a stagnant binary electrolyte a st udy is made of how low amplitude irregularities in the electrode surfa ces evolve with time. The linear stability problem is solved numerical ly as an eigenvalue problem. Analytical solutions for three different limits are obtained and found to agree with the numerical solution. In contrast to previous work simultaneous perturbations to both electrod es are treated and the full equation for the electric potential is sol ved. Also, the common assumption of neglecting the time derivative in the equation for concentration perturbation is not made use of. As a r esult, the growth rate for very large wavelengths is found to approach a finite value rather than decreasing to zero. Non-dimensional parame ters are identified and their influence is studied. As in most previou s results growing modes are found for each value of the applied curren t.