Electrodeposition and Thermal Treatment of Nickel Coatings Containing Molybdenum and Silicon

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Ni+Mo+Si coatings were obtained by electrolytic codeposition of crystalline nickel with molybdenum and silicon powders from an electrolyte containing suspension of these powders. These coatings were obtained in galvanostatic conditions, at the current density of -0.100 A cm-2. Thermal treatment of these coatings in argon atmosphere was done at temperature of 1100oC for 1 hour. A scanning electron microscope was used for surface morphology characterization of the coatings. Chemical composition of obtained coatings was determined by Xray fluorescence spectroscopy method and phase composition investigations were conducted by Xray diffraction method. It was found that introduction of molybdenum and silicon into nickel matrix, causes of obtained coatings about very rough surface. Thermal treatment of these coatings influenced their surface. The surface after thermal treatment is more compact and less rough than the as-deposited one.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

1182-1185

DOI:

10.4028/www.scientific.net/MSF.514-516.1182

Citation:

M. Popczyk et al., "Electrodeposition and Thermal Treatment of Nickel Coatings Containing Molybdenum and Silicon", Materials Science Forum, Vols. 514-516, pp. 1182-1185, 2006

Online since:

May 2006

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$35.00

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