EXPERIMENTAL AND THEORETICAL STUDY OF THE ONSET OF THE GROWTH OF AN IRREGULAR METAL ELECTRODEPOSIT

GONZÁLEZ GRACIELA, MICHEL ROSSO A, ELISABETH CHASSAING C, JEAN-NOËL CHAZALVIEL A

Kyoto University, Japan

Simposio; The 4th International Symposium on Electrochemical Processing of Tailored Materials; 2005

International Society of Electrochemistry and Materials Tailoring Society

Electrodeposition of a metal can produce aggregates with very irregular morphologies, in particular dendrites. These phenomena have been studied in a large number of experimental conditions, mainly in thin layer cells, where the observation of dendritic growth, and the measurement of concentration are very convenient. Previous studies have shown the role of different parameters, such as concentration of the electrolyte, current density, electrolyte viscosity, chemical species, etc                    In this paper, we present a study of the initial stage of the growth by in situ optical experiments and impedance spectroscopy in a vertical cell.