Chandrasekar, M.S. and Shanmugaigamani, S. and Malathy, P. (2010) Structural and textural study of electrodeposited zinc from alkaline non-cyanide electrolyte. Journal of Materials Science, 45. pp. 1160-1169. ISSN 0022-2461

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Pulse electrodeposition was used to produce zinc deposits from an alkaline non-cyanide electrolyte with additives. The influence of additives’ concentration and pulse parameters, such as ON-time, OFF-time, and pulse peak current density on the grain size, surface morphology, and crystal orientation were investigated. In an additive free electrolyte, increase in OFF-time at constant ON-time and peak current density decreases the grain size while the latter increases with increasing ON-time at constant OFFtime and peak current density. A progressive decrease of grain size was observed with increasing peak current density up to 5 Adm-2 at constant ON-time and OFF-time in both additive-free electrolyte and bath containing additives. Zinc with an average crystallite size of 34 nm was obtained at 5 Adm-2 from electrolyte containing additives. The preferred orientation of the zinc deposits obtained at 6 ms (ON-time), 51.5 ms (OFF-time) and 5 Adm-2 (peak current density) with electrolyte containing additives was prismatic [10.0] plane.

Item Type: Article
Subjects: Industrial Metal Finishing
Depositing User: ttbdar CECRI
Date Deposited: 08 May 2012 07:06
Last Modified: 14 Aug 2017 06:12

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