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Title: Relation between plating overpotential and porosity of thin nickel electrolytic coatings
Authors: Fan, Chonglun ×
Celis, Jean-Pierre
Roos, Jozef #
Issue Date: Oct-1991
Publisher: Electrochemical soc inc
Series Title: Journal of the electrochemical society vol:138 issue:10 pages:2917-2920
Abstract: The relation between plating overpotential and porosity of thin nickel electrolytic coatings (0.2-mu-m) was investigated. The porosity of nickel coatings was shown to be dependent on coating structure, which is determined by the plating overpotential. A lower porosity can be achieved by using a relatively high plating overpotential resulting in the deposition of nickel coatings with fine grains. A relation between the through-coating porosity of thin nickel coatings and the activation overpotential was identified. At plating current densities approaching the limiting current density, the porosity tends to increase due to a mass transport effect on the coating thickness distribution along the substrate surface.
ISSN: 0013-4651
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Chemical and Extractive Metallurgy Section (-)
× corresponding author
# (joint) last author

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