Morphology and growth of electrodeposited silver powder particles

The effect of overpotential pulsing and periodic current reversal on the morphology of silver powders was investigated using a scanning electron microscope (SEM). It is shown that the profile of pulses or current reversal determines the micromorphology of the electrodeposited silver particles. Gener...

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Bibliographic Details
Published inHydrometallurgy Vol. 86; no. 1; pp. 22 - 26
Main Authors MAKSIMOVIC, V. M, PAVLOVIC, M. G, PAVLOVIC, Lj. J, TOMIC, M. V, JOVIC, V. D
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.04.2007
Elsevier
Subjects
Applied sciences
Current reversal
Exact sciences and technology
Metallic coatings
Metals. Metallurgy
Morphology
Overpotential pulsing
Production of metals
Production techniques
Silver powder
Surface treatment
Current reversal
Silver powder
Overpotential pulsing
Morphology
Silver
Electrodeposition
Surface treatment
Hydrometallurgy
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Summary:The effect of overpotential pulsing and periodic current reversal on the morphology of silver powders was investigated using a scanning electron microscope (SEM). It is shown that the profile of pulses or current reversal determines the micromorphology of the electrodeposited silver particles. Generally, three forms of silver were detected: (1) dendrites, (2) equiaxial crystals (independent and/or agglomerates) and (3) rods. The shape of particle seems to be the result of an interplay between the surface energy and growth kinetics.
ISSN:0304-386X
1879-1158
DOI:10.1016/j.hydromet.2006.10.004