Shanmugasigamani, S. and Pushpavanam, M. (2006) Role of additives in bright zinc deposition from cyanide free alkaline baths. Journal of Applied Electrochemistry, 36 (3). pp. 315-322. ISSN 0021-891X

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Abstract

A new additive formulation for non-cyanide alkaline zinc baths was identified after experiments with various additives. Polyvinyl alcohol addition was found to be the best primary additive of those tested. The secondary additives selected belonged to the aldehyde group. The selection of the additives was made based on Hull cell, cathode current efficiency and throwing power studies. Thickness measurements at various points on a cathode indicated uniform thickness distribution. XRF showed uniform deposition. SEM examination indicated a finegrained deposit structure. Finally, the influence of each additive was studied using cyclic voltammetry.

Item Type:	Article
Uncontrolled Keywords:	Alkaline non-cyanide Bright zinc plating; cathode current efficiency; cyclic voltammetry; Hull cell studies; thickness distribution
Subjects:	Industrial Metal Finishing
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	06 Apr 2012 15:03
Last Modified:	06 Apr 2012 15:03
URI:	http://cecri.csircentral.net/id/eprint/639

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