Tribological properties of metal matrix composite coatings produced by electrodeposition of copper. (June 2015)

• Record Type: Journal Article
• Authors: Bhat, A.; Bourell, D.
• Is Part Of: Materials science and technology. Volume 31:Number 8(2015:Aug.)
• Page Start: 969
• Page End: 974
• Publication Date: 2015-06
• Subjects: Indirect laser sintering, -- Porous graphite and silicon carbide, -- Electrolytic infiltration; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1179/1743284714Y.0000000610
• Languages: English
• ISSNs: 0267-0836

Abstract

Abstract : Porous templates of graphite and silicon carbide–carbon fibres were fabricated on a copper-110 alloy plate using indirect laser sintering. Copper was deposited electrochemically into the pore network to achieve metal matrix composite coatings using a redox flow battery apparatus. Densities of 89 and 96% were achieved on the copper–graphite composite and copper–SiC composites, respectively. The coefficient of friction and volumetric rate of material loss was determined under a load of 5 N for the coatings and three different sliding speeds of 1200, 1800 and 2400 mm min −1 in sliding wear test. The copper–SiC coatings exhibited a higher wear resistance compared to the copper-110 alloy, while the copper–graphite coatings exhibited a very low coefficient of friction.