Authors
School of Metallurgy and Materials Engineering, University College of Engineering, University of Tehran
Abstract
Copper is widely used in different industries due to its good thermal and electrical conductivity.However, it can be in contact with fluid environments in these applications and thus, its corrosion properties are also important. In this study, copper/silicon carbide nano-composite coatings were deposited on copper substrates from sulfate bath by pulsed current and different current densities. The effects of copper surface preparation and current density on grain size, morphology,hardness, porosity, and corrosion properties of the coatings were investigated. Results revealed that, surface preparation before electrodeposition leaded to more uniform and less defective coatings. Grain size and porosity percent were decreased by increasing of current density. However, incorporation of nano-particles was also decreased by increasing of current density. Therefore, the optimum peak current density was achieved at 12A.dm-2at whichthe highest micro-hardness and thelowestcorrosion rateof the coatingsrespectively193 Hv and 0.008mA/cm2 obtained
Keywords
- Benea, O. Mitoseriu, J. Galland, F. Wenger, P. Ponthiaux, “Corrosion study of copper composite coating by impedance spectroscopy method”, Materials and Corrosion. 51 (2000) 491-495.
- F. Levin, J.N. Dupont, A.M. Marder, “The effect of second phase volume fraction on the erosion resistance of metal-matrix composites”, Wear. 238 (2000) 160-167.
- Hou, M.D. Ger , L.M. Wang , S.T. Ke, “The wear behaviour of electro-codeposited Ni–SiC composites”, Wear. 253 (2002) 994-1003.
- Zamblau, S. Varvara, L. Muresan, “Corrosion behavior of Cu–SiO2nanocomposite coatings obtainedby electrodeposition in the presence of cetyltrimethyl ammonium bromide”, Journal of Materials Science Letters. 46) 2011( 6484-6490.
- R.Allahkaram,S.Golroh,M.Mohammadalipour,“Properties of Al2O3nano-particle reinforced copper matrix composite coatings prepared by pulse and direct current electroplating”, Materials&Design. 32 (2011) 4478-4484.
- S. Ramalingam, V. S. Muralidharan, A. Subramania, "Electrodeposition and characterization of Cu-TiO2nanocomposite coatings", Journal of Solid State Electrochem.13 (2009) 1777–1783.
- Lee, H. Lee, J. Jeon, “Codeposition of micro- and nano-sized SiC particles in the nickel matrix composite coatings obtained by electroplating”, Surface and Coatings Technology. 201 (2007) 4711–4717.
- T. J. Low, R. G. A. Wills, F. C. Walsh, “Electrodeposition of composite coatings containing nanoparticles in a metal deposit”, Surface and Coatings Technology. 201 (2006) 371–383.
- Ch .Lee, J. Lim, S. Hwang, E. Park, J. Shim, J. Park, J. Joo, S. Jung, “Characterization of flexible copper laminates fabricated by Cu electro-plating process”, Transactions of Non ferrous Metals. 19 (2009) 965–969.
- Nickchi, M. Ghorbani, “Pulsed electrodeposition and characterization of bronze-graphite composite coatings”, Surface and Coatings Technology. 203 (2009) 3037–3043.
- P. Celis, J.R. Roos, “Kinetics of the Deposition of Alumina Particles from Copper Sulfate Plating Baths”,Journal of The Electrochemical Society. 124 (1977) 1508-1511.
- P. Celis, J.R. Roos, C. Buelens, “A Mathematical Model for the Electrolytic Codeposition of Particles with a Metallic Matrix”, Journal of The Electrochemical Society. 134 (1987) 1402-1408.
- Fransaer, J.R. Celis, J.R. Roos, “Analysis of the Electrolytic Codeposition of Non‐Brownian Particles with Metals”, Journal of The Electrochemical Society. 139 (1992) 413-425.
- T. Aruna, C. N. Bindu, V. EzhilSelvi, V. K. William Grips, K. S. Rajam, “Synthesis and properties of electrodeposited Ni/ceria nanocomposite coatings”, Surface and Coatings Technology.200 (2006) 6871–6880.
- http://www.messbareh.com/Default.aspx?ID=38
- Raeissi, , A. Saatchi, M.A. Golozar, J.A. Szpunar, “Effect of surface preparation on zinc electrodeposited texture”, Surface and Coatings Technology.197 (2005) 229–237.
- Creus, H. Mazille, H. Idrissi, “Porosityevaluation of protective coatings onto steel”, Surf. Coat. Technol. 130(2000) 224-232.
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