CHEMISTRY AND THEORY OF CHROMIUM DEPOSITION .1. CHEMISTRY

Authors
Citation
Nv. Mandich, CHEMISTRY AND THEORY OF CHROMIUM DEPOSITION .1. CHEMISTRY, Plating and surface finishing, 84(5), 1997, pp. 108-115
Citations number
38
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Materials Science, Coatings & Films
ISSN journal
03603164
Volume
84
Issue
5
Year of publication
1997
Pages
108 - 115
Database
ISI
SICI code
0360-3164(1997)84:5<108:CATOCD>2.0.ZU;2-K
Abstract
Although electrodeposition of chromium has been practiced for 75 years , the mechanism is still open to conjecture. Part of the reason is the complexity of the chemistry of chromic acid and its existence in aque ous solution in the form of coordinated octahedral complexes, These co mplexes vary both structurally and kinetically at different CrO3 conce ntrations. The chemistry of tri- and hexavalent chromium is discussed, including polymerization and related mechanisms relative to the overa ll deposition mechanism.