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Study on Electrodeposition of Ni-Graphite Composite Coatings in Sulfamate Bath
Abstract:
This paper presented the composite coatings of nickel with graphite particle on the aluminum substrate using a nickel sulfamate bath. Effects of graphite particle concentration on the surface morphologies of the composite coatings were investigated. The inclusion of graphite particle into metal deposits was dependent on many process parameters, including particle concentration, current density, pH and temperature. Results of SEM and XRD demonstrated that graphite particle had successfully deposited on that nickel matrix; besides, the surface morphology of coatings obtained from sulfamate bath containing 2g/L graphite particle dispersed more uniformly than the ones with higher concentration.
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1546-1550
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Online since:
October 2010
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© 2011 Trans Tech Publications Ltd. All Rights Reserved
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