Development of a new electroplating process for Ni-W alloy deposits

Io Mizushima, Peter Torben Tang, Hans Nørgaard Hansen, M.A.J. Somers

    Research output: Contribution to journalJournal articleResearchpeer-review


    In the present work, the effect of the complexing agents citrate, glycine and triethanolamine (TEA) on the electrodeposition of Ni-W layers from electrolytes based on NiSO4 and Na2WO4, is investigated. The investigations include measurement of the current efficiencies, determination of the tungsten content in the electrodeposits (by energy dispersive X-ray analysis), voltammetry studies and characterization of complex formation by UV-spectrometry. High W content and current efficiency could be realized by using electrolytes containing all of the three complexing agents. The results show that small amounts of glycine in a citrate-triethanolamine based electrolyte positively influences both the mass-transfer and the deposition potential.
    Original languageEnglish
    JournalElectrochimica Acta
    Issue number5
    Pages (from-to)888-896
    Publication statusPublished - 2005


    • complexing agent
    • electrodeposition
    • XRD patterns
    • microstructure
    • nickel-tungsten

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