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    Preparation and property of duplex Ni-B-TiO2/Ni nano-composite coatings

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    Date
    2015
    Author
    Wang, Shu-Jen
    Wang, Yuxin
    Shu, Xin
    Tay, Seeleng
    Gao, Wei
    Shakoor, R. A.
    Kahraman, Ramazan
    ...show more authors ...show less authors
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    Abstract
    The duplex Nickel-Boron-Titania/Nickel (Ni-B-TiO2/Ni) coatings were deposited on mild steel by using two baths with Ni as the inner layer. TiO2 nanoparticles were incorporated into the Ni-B coatings as the outer layer by using solid particle mixing method. The microstructure, morphology and corrosion resistance of the duplex Ni-B-TiO2/Ni nanocomposite coatings were systemically investigated. The results show that the duplex interface was uniform and the adhesion between two layers was very good. The microhardness of duplex Ni-B-TiO2/Ni coating was much higher than the Ni coating due to the outer layer of Ni-B-TiO2 coating. The corrosion resistance of the duplex Ni-B-TiO2/Ni coating was also significantly improved comparing with single Ni-B coating. The Ni-B-10 g/L TiO2/Ni coating was found to have the best corrosion resistance among these duplex coatings. This type of duplex Ni-B-TiO2/Ni coating, with high hardness and good corrosion resistance properties, should be able to find broad applications under adverse environmental conditions.
    DOI/handle
    http://dx.doi.org/10.1142/S0217979215400226
    http://hdl.handle.net/10576/34850
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    • Chemical Engineering [‎1195‎ items ]

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