Title: Influence of cubic nanostructure additions on the properties of electroless coatings

Authors: Zdravka Karaguiozova, Stavri Stavrev, Tomasz Babul, Aleksander Ciski

Addresses: Space Research Institute, Bulgarian Academy of Sciences, Str. Moskovska 6, 1000 Sofia, Bulgaria. ' Space Research Institute, Bulgarian Academy of Sciences, Str. Moskovska 6, 1000 Sofia, Bulgaria. ' Heat Treatment Department, Institute of Precision Mechanics, 3 Duchnicka Str., 01-796 Warsaw, Poland. ' Heat Treatment Department, Institute of Precision Mechanics, 3 Duchnicka Str., 01-796 Warsaw, Poland

Abstract: In this research, the influence of co-deposited within nickel-phosphorus matrix cubic nano- and micro-sized particles (nanodiamond and micron cubic boron nitride) on the properties of the composite coatings was investigated. Nanometer diamond was synthesised by using the detonation method. It is a kind of materials with properties of diamond and nanometer particle. High phosphorus electroless nickel bath was used to prepare electroless nickel composite coatings from a suspension. In order to characterise the deposits, their structure, morphology and hardness were analysed. The incorporation of particles has a marginal influence on the composition. The influence of thermal processing of the samples on the coating properties was investigated. The highest microhardness, the superior corrosion and wear resistance of the nickel-phosphorus-nanodiamond composite coating was obtained by heat-treated samples.

Keywords: nanocoating; nanodiamond; wear resistance; corrosion resistance; microhardness; cubic boron nitride; micron CBN; cubic nanostructures; electroless coatings; nanomaterials; nanotechnology; nanoparticles; nickel; phosphorus.

DOI: 10.1504/IJNM.2010.029930

International Journal of Nanomanufacturing, 2010 Vol.5 No.1/2, pp.129 - 138

Published online: 03 Dec 2009 *

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