Nanocrystalline Ni-Co Alloy Synthesis by High Speed Electrodeposition

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Jamaliah Idris ; Chukwuekezie Christian ; Eyu Gaius (2013)
  • Publisher: Hindawi Limited
  • Journal: Journal of Nanomaterials (issn: 1687-4110, eissn: 1687-4129)
  • Related identifiers: doi: 10.1155/2013/841260
  • Subject: Technology (General) | T1-995 | Article Subject

Electrodeposition of nanocrystals is economically and technologically viable production path for the synthesis of pure metals and alloys both in coatings and bulk form. The study presents nanocrystalline Ni-Co alloy synthesis by high speed electrodeposition. Nanocrystalline Ni-Co alloys coatings were prepared by direct current (DC) and deposited directly on steel and aluminum substrates without any pretreatment, using high speed electrodeposition method. The influence of the electrolysis parameters, such as cathodic current density and temperature at constant pH, on electrodeposition and microstructure of Ni-Co alloys were examined. A homogeneous surface morphology was obtained at all current densities of the plated samples, and it was evident that the current density and temperature affect the coating thickness of Ni-Co alloy coatings.
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