Influence of Co on Si3N4 incorporation in electrodeposited Ni

Srivastava, Meenu and William Grips, VK and Rajam, KS (2009) Influence of Co on Si3N4 incorporation in electrodeposited Ni. Journal of Alloys and Compounds, 469. pp. 362-365. ISSN 0925-8388

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Abstract

Electrocomposites are known to have improved hardness and wear resistance. Si3N4 possesses good wear resistance and low friction. However, its incorporation is observed to be poor in a Ni matrix. In the present study the influence of an inorganic additive Cobalt, on the incorporation of Si3N4 particles in a Ni matrix has been investigated. The composites with cobalt contents varying from 14wt.% –100wt.% were electrodeposited from sulphamate electrolyte. The coatings were characterized using optical, scanning electron microscope and X-ray diffraction studies. The extent of Si3N4 incorporation was correlated with the cobalt content. The structure, surface morphology and the microhardness of the composites were studied and a correlation between the particle content, cobalt content, and structure was attempted.

Item Type: Article
Uncontrolled Keywords: Ceramic; Coating material; Metal matrix composites; Metals and alloys, Microstructure
Subjects: CHEMISTRY AND MATERIALS > Composite Materials
Depositing User: Meenu Srivastava Meenu
Date Deposited: 09 Aug 2010 04:14
Last Modified: 09 Aug 2010 04:14
URI: http://nal-ir.nal.res.in/id/eprint/8906

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