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Electrodeposition of Ni/WC nano composite in sulfate solution

Mohajeri, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.matchemphys.2011.04.053
  3. Abstract:
  4. Metal matrix composite coatings have gained great attention due to their exclusive properties. They have shown the properties of a metallic host material modified by addition of a second phase. In electrodeposition of Ni/WC nano composite, nickel was deposited on the substrates by DC electrodeposition in Watt's based bath containing nickel sulfate, nickel chloride, boric acid and sodium dodecyl sulfate. WC content in the coating was determined by different parameters such as current density, powder content and surfactant amount. Mechanism of electrodeposition was analyzed by cyclic voltammetry and was confirmed by Guglielmi model. Surface morphology was studied by scanning electron microscopy. Hardness, scratch resistance and corrosion resistance of Ni/WC composite coating were also determined
  5. Keywords:
  6. Coatings ; Composite materials ; Corrosion ; Electron microscopy ; Boric acids ; DC electrodeposition ; Metal matrix composite coatings ; Metallic hosts ; Nickel chloride ; Nickel sulfate ; Scratch resistance ; Second phase ; Sodium dodecyl sulfate ; Sulfate solutions ; Chlorine compounds ; Cladding (coating) ; Corrosion resistance ; Cyclic voltammetry ; Electrodeposition ; Inorganic acids ; Metallic matrix composites ; Nanocomposites ; Nickel ; Scanning electron microscopy ; Sodium ; Sodium sulfate ; Surface active agents ; Tungsten carbide ; Composite coatings
  7. Source: Materials Chemistry and Physics ; Volume 129, Issue 3 , 2011 , Pages 746-750 ; 02540584 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0254058411003543