Properties of nanocomposite Ni/diamond coatings produced by the electrocrystallization method
Maria Trzaska, Anna Mazurek
Quarterly No. 1, 2016 pages 37-41
DOI:
keywords: composite nanocoatings, Ni/diamond, diamond powder, electrocrystallization method
abstract This paper presents the results of research on the properties of composite coatings with a nickel matrix and diamond nanopowders as the dispersed phase. The coating deposition processes were carried out in a Watts bath containing organic compounds and dispersion particles in the form of nanodiamond powder. The characteristics of the dispersed diamond phase were determined using a transmission electron microscope and X-ray diffraction identifications. For comparison purposes, the research also covered pure nickel coatings with nanocrystalline structures. The morphology, topography and chemical composition of the produced coatings were analysed using a scanning electron microscope equipped with an EDS detector. The microhardness of the nickel and composite coatings were measured using a Vickers microhardness tester. The tribological properties of the manufactured coatings were studied using a Calotest. The structures of the produced coatings were found to be compact. Compared to the nickel coatings, the Ni/diamond composite coatings were found to have greater microhardness and stronger abrasive wear resistance.