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Electrodeposition of Ni-Mo Defect-Free Alloy from Ammonium-Citrate Electrolyte in Pulse Current Mode

  • Sergey M. Karabanov (a1), Yulia M. Stryuchkova (a1), Dmitriy V. Suvorov (a1), Gennadiy P. Gololobov (a1), Dmitry Yu. Tarabrin (a1), Nikolay B. Rybin (a1) and Evgeniy V. Slivkin (a1)...

Abstract

Electrodeposition in pulse current mode of nickel-molybdenum alloy on a nickel substrate was studied. The range of current density variation from 2 to 9 A/dm2 was investigated. The range of pulse and pause step lengths is from tens to hundreds of milliseconds. SEM-images of applied coatings surfaces are obtained. The method of energy dispersive spectroscopy determined that the molybdenum content in the coating is 21-24 wt%. It was found that under transient pulse mode of electrolysis, with the pulse step corresponding to hundreds of milliseconds, the most rigid and smooth coatings of the electrolytic nickel-molybdenum alloy are obtained from ammonium-citrate electrolyte. It is shown that the percentage of nickel in the alloy does not depend on the electrolysis mode.

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1. Karabanov, S.M., Maisels, R.M. and Shoffa, V.N., Magnetically controlled reed switches and products on their basis, edited by Shoffa, V.N. (Intellect, Dolgoprudniy, 2011), p.407.
2. Lewandowski, M. and Sarbak, Z., Applied Catalysis A: General, 168 (1), 179185 (1998).
3. Pushpavanam, M., Electrochimica Acta, 53, 33133322 (2008)
4. Marlot, A., Kern, P. and Landolt, D., Electrochimica Acta, 48, 2936 (2002).
5. Vasko, A.T., Electrochemistry of molybdenum and tungsten (Naukovadumka, Kiev, 1977), p. 120.

Keywords

Electrodeposition of Ni-Mo Defect-Free Alloy from Ammonium-Citrate Electrolyte in Pulse Current Mode

  • Sergey M. Karabanov (a1), Yulia M. Stryuchkova (a1), Dmitriy V. Suvorov (a1), Gennadiy P. Gololobov (a1), Dmitry Yu. Tarabrin (a1), Nikolay B. Rybin (a1) and Evgeniy V. Slivkin (a1)...

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