2. Pulsed speed characteristics influence electrode processes
The phenomenological approach is a necessary starting point before implementing or optimizing an electroplating process using modulated electrical regimes. It consists in qualitatively predicting the influence of each characteristic of pulsed regimes on the main physico-chemical processes involved: material transport, formation of crystal nuclei, growth of these nuclei, adsorption phenomena, etc.
This approach is also a prerequisite for any transposition, either of scale or from one metal system to another.
2.1 Pause time T ′ at zero current
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This "pause", during which the circuit is open, allows for the relaxation of non-equilibrium phenomena that appear during the passage of the current. These include, in particular,...
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Pulsed speed characteristics influence electrode processes
Modifications to deposits obtained by pulsed operation
Bibliography
General works
- Theory and practice of pulse plating (Théorie et pratique de l'électrolyse pulsée) - Ed. PUIPPE (J.C.) and LEAMAN (F.) 247 p. 1986 American Electroplaters and Surface Finishers Society.
References
Laboratoires
French laboratories with experience in this field
Center d'Études de Chimie Métallurgique, CNRS, Vitry/Seine CETIM, Senlis.
Laboratoire de Chimie de Matériaux Inorganiques, Toulouse.
Corrosion and Surface Treatments Laboratory, Besançon.
Electrochemistry Laboratory, CNAM, Paris.
Electrochemistry Laboratory, Université...
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