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Tribological properties of Ni–P–SiO2 nanocomposite coating on aluminum

Sadreddini, S ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1134/S1061933X15050166
  3. Publisher: Maik Nauka Publishing / Springer SBM , 2015
  4. Abstract:
  5. In this study, the effects of different concentrations of SiO2 nanosized particles in the bath on deposition rate, surface morphology and wear behavior of Ni–P–SiO2 composite coatings were investigated. The rate of coating deposition was influenced by the incorporation of SiO2 particles. The observations of microstructural morphology were performed with field emission scanning electron microscopy. The amount of deposited SiO2 was examined by X-ray energy dispersive analysis. The results showed that for the coating produced at 12.5 g/L of nanoparticles, the amount of co-deposited SiO2 nanoparticles and microhardness reached their maximal values 4.5 wt % and 453 VH, respectively. Furthermore, nanocomposite coating improved the wear resistance of the aluminum substrate
  6. Keywords:
  7. Aluminum ; Composite coatings ; Deposition ; Deposition rates ; Field emission microscopes ; Nanocomposites ; Nanoparticles ; Nickel ; Scanning electron microscopy ; Wear resistance ; Aluminum substrate ; Coating deposition ; Field emission scanning electron microscopy ; Microstructural morphology ; Nano-composite coating ; Nano-sized particles ; Tribological properties ; X-ray energy dispersive analysis ; Aluminum coatings
  8. Source: Colloid Journal ; Volume 77, Issue 5 , September , 2015 , Pages 628-634 ; 1061933X (ISSN)
  9. URL: http://link.springer.com/article/10.1134%2FS1061933X15050166