Rameshbapu, G.N.K. and Thiruchelvam, T. (2001) Electrodeposited cobalt-boron nitride composites. Bulletin of Electrochemistry , 17 (12). pp. 529-534. ISSN 0256-1654

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Abstract

Electrodeposited composite coatings enhance one or more of the properties of the substrate or confer an entirely new property. The use of metals like copper, nickel, cobalt, etc., as matrix makes possible the use of composites at elevated temperatures. In this investigation cobalt-boron nitride (Co-BN) composites were produced by conventional electrodeposition methods using a cobalt sulfate bath containing boron nitride (BN) particles in suspension. The effects of BN particle concentration in the bath, current density, pH and temperature on volume percent (Vol. %) incorporation of BN particles in the composites were investigated and the optimum conditions were found. Corrosion behaviour of the Co-BN composite was studied in 5% NaCl and 1 M HCl solutions by galvanostatic polarization method and the results were compared with those of cobalt deposits. From the resulting polarization curves, the corrosion potential and the corrosion current were obtained. Surface topography of Co and Co-BN composite was also studied

Item Type:	Article
Uncontrolled Keywords:	Electro composites; Co-BN; Galvanostatic polarization; 5% NaCl; 1 M HCl
Subjects:	Industrial Metal Finishing
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	06 Nov 2012 11:33
Last Modified:	06 Nov 2012 11:33
URI:	http://cecri.csircentral.net/id/eprint/1244

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