Enhancement of microhardness and wear resistance of Ni-CeO2 nanocomposite coatings

The improvement of the incorporated nanoparticle content in nanocomposite coatings is a key factor in composite electrodeposition. This paper describes a modified sediment co-deposition (SCD) technique which has been developed to produce Ni-CeO 2 nanocomposite coatings, with the aim of enhancing the...

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Veröffentlicht in:Surface engineering 2014-03, Vol.30 (3), p.159-164
Hauptverfasser: Qu, N. S., Hu, X. Y., Qian, W. H., Zhu, Z. W.
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container_end_page 164
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container_title Surface engineering
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creator Qu, N. S.
Hu, X. Y.
Qian, W. H.
Zhu, Z. W.
description The improvement of the incorporated nanoparticle content in nanocomposite coatings is a key factor in composite electrodeposition. This paper describes a modified sediment co-deposition (SCD) technique which has been developed to produce Ni-CeO 2 nanocomposite coatings, with the aim of enhancing the embedded CeO 2 nanoparticle content. The maximum content of CeO 2 particles in the nanocomposite coatings created using this modified SCD technique is 7·09 wt-%, which is the highest reported. A maximum microhardness of 630 HV is obtained, which is significantly greater than that observed in nanocomposite coatings fabricated using the conventional electrodeposition technique. As the wear resistance of the nanocomposite coatings increases with increasing incorporated CeO 2 nanoparticle content, so this nanocomposite coating with an incorporated CeO 2 nanoparticle content of 7·09 wt-% exhibits maximum wear resistance.
doi_str_mv 10.1179/1743294413Y.0000000230
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subjects Applied sciences
Coating
Contact of materials. Friction. Wear
Electrodeposition
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metallic coatings
Metals. Metallurgy
Microhardness
Nonmetallic coatings
Production techniques
Surface treatment
Wear
title Enhancement of microhardness and wear resistance of Ni-CeO2 nanocomposite coatings
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