Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Effect of Plating Parameters on the Electrodeposition of Ni-alumina Nanocomposite

  • Gyawalia, Gobinda (Department of Metallurgy and Materials Engineering, Sun Moon University) ;
  • Woo, Dong-Jin (Korea Institute of Construction Materials) ;
  • Lee, Soo-Wohn (Department of Environmental Engineering, Sun Moon University)
  • Received : 2010.07.22
  • Accepted : 2010.08.30
  • Published : 2010.08.31
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Abstract

$Ni-Al_2O_3$ nanocomposite coatings were fabricated by conventional electrodeposition technique using nickel sulfamate bath. Effect of plating parameters on electrodeposition of $Ni-Al_2O_3$ nanocomposite were studied. The properties of the nano composite were investigated by using SEM, XRD, and Vicker's microhardness test. The results demonstrated that $Al_2O_3$ incorporation in the composite coatings was found to be increased by increasing stir rate and $Al_2O_3$ content in plating bath. Microhardness of the composite coatings was also increased with increasing content of the nano particles in the plating bath. The surface morphologies of the nanocomposite coatings were found to be varied with varying pH, current densities as well as alumina content in the plating bath.

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