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    Quantitative analysis of electroplated nickel coating on hard metal

    Access Status
    Fulltext not available
    Authors
    Wahab, H.
    Noordin, M.
    Izman, S.
    Kurniawan, Denni
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Wahab, H. and Noordin, M. and Izman, S. and Kurniawan, D. 2013. Quantitative analysis of electroplated nickel coating on hard metal. The Scientific World Journal. 2013.
    Source Title
    The Scientific World Journal
    DOI
    10.1155/2013/631936
    ISSN
    1537-744X
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/68128
    Collection
    • Curtin Research Publications
    Abstract

    Electroplated nickel coating on cemented carbide is a potential pretreatment technique for providing an interlayer prior to diamond deposition on the hard metal substrate. The electroplated nickel coating is expected to be of high quality, for example, indicated by having adequate thickness and uniformity. Electroplating parameters should be set accordingly for this purpose. In this study, the gap distances between the electrodes and duration of electroplating process are the investigated variables. Their effect on the coating thickness and uniformity was analyzed and quantified using design of experiment. The nickel deposition was carried out by electroplating in a standard Watt's solution keeping other plating parameters (current: 0.1 Amp, electric potential: 1.0 V, and pH: 3.5) constant. The gap distance between anode and cathode varied at 5, 10, and 15 mm, while the plating time was 10, 20, and 30 minutes. Coating thickness was found to be proportional to the plating time and inversely proportional to the electrode gap distance, while the uniformity tends to improve at a large electrode gap. Empirical models of both coating thickness and uniformity were developed within the ranges of the gap distance and plating time settings, and an optimized solution was determined using these models. © 2013 Hassan A. Wahab et al.

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