Abstract
Ceramic particles like SiC have attracted great attention because of their usability as reinforcement for composite materials. Autocatalytic (electroless) nickel deposition is a unique process for the enhancement of the surface properties of ceramic particles. In this study, deposition of nickel phosphorus (Ni-P) and nickel boron (Ni-B) layer on SiC particles via autocatalytic plating in hypophosphite and borohydride baths was investigated. SiC powders were sensitized and activated respectively in order to ensure catalytic properties. Electroless nickel coating was carried from two different nickel ion sources (nickel chloride, nickel sulphate) following the pre-treatments of particle surfaces. Coated powders morphologies were characterized by transition electron microscope (SEM). X-ray diffraction and energy dispersive spectroscopy (EDS) analysis were used to investigate the chemical analysis of coating layers. The results showed that a better uniformity and bonding were obtained for Ni-P coatings with the Ni source of NiSO4.6H2+O as compared to NiCl2.6H2+O. For Ni-B coatings, the Ni2+ source of NiC12.6H2O has provided better quality and continuous coating layer on SiC surfaces.
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Sezen, G., Kilicarslan, A., Daglılar, S., Kerti, I. (2015). Autocatalytic Ni-P and Ni-B Deposition on SiC Ceramic Particles. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_177
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DOI: https://doi.org/10.1007/978-3-319-48127-2_177
Publisher Name: Springer, Cham
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