Title: Electrochemical investigation of the codeposition of SiC and SiO2 particles with nickel
Authors: Nowak, P ×
Socha, RP
Kaisheva, M
Fransaer, Jan
Celis, Jean-Pierre
Stoinov, Z #
Issue Date: Apr-2000
Publisher: Kluwer academic publ
Series Title: Journal of applied electrochemistry vol:30 issue:4 pages:429-437
Abstract: The use of electrochemical impedance spectroscopy (EIS) for the in situ control of the electrolytic codeposition of Ni/SiO2 and Ni/SiC was investigated. An attempt was made to clarify why silica particles hardly codeposit in comparison to silicon carbide particles. It was found that the presence of SiO2 and SiC particles influences the metal deposition process in different ways. SiC particles that are being embedded in the growing metal layer cause an apparent decrease in the electrode surface area, probably due to blocking off a part of the surface by partly engulfed particles. In the case of SiO2 particles, which embed in the metal matrix to a very limited extent, no blocking was observed. It was found that the presence of particles in the solution causes an apparent increase in the electrode surface area, probably due to increased surface roughness.
ISSN: 0021-891X
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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