TITLE

Electrodeposition of Co–Cu alloy coatings from glycinate baths

AUTHOR(S)
Mohamed, A. E.; Rashwan, S. M.; Abdel-Wahaab, S. M.; Kamel, M. M.
PUB. DATE
November 2003
SOURCE
Journal of Applied Electrochemistry;Nov2003, Vol. 33 Issue 11, p1085
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The cathodic polarization, cathodic current efficiency of codeposition, composition and structure of Co–Cu alloy as a function of bath composition, current density and temperature were studied. Electrodeposition was carried out from solutions containing CuSO4 · 5H2O, CoSO4 · 7H2O, Na2SO4 and NH2CH2COOH. The cathodic current efficiency of codeposition (CCE) was high and it increased with increasing temperature and Cu2+ content in the bath, but it decreased with current density. The codeposition of Co–Cu alloys from these baths can be classified as regular. The Co content of the deposit increased with Co2+ content and current density and decreased with glycine concentration and temperature. The structure of the deposited alloys was characterized by anodic stripping and X-ray diffraction techniques. The data showed that the deposited alloys consisted of a single solid solution phase with a face-centred cubic (f.c.c.) structure.
ACCESSION #
16781834

 

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