Synthesis and Characterization of NiP-TiC-SiC Nanocomposite Coating via Electroless Process on Alumina Substrate

Abstract

Present-day industrial need high surface engineering quality since it deals with many material properties that are applied in modern applications. Autocatalytic plating of material surfaces enhances their mechanical and chemical properties. This study used electroless plating to create (NiP-TiC-SiC) nanocomposite coatings on alumina ceramic under various time and temperature deposition conditions to get the best performances of nanocomposite coatings. Different coating morphologies have been created, as seen in (FESEM) images. The (EDX) results show that the (NPs) were effectively integrated and that the main elements of the coating are nickel and phosphorus. The (XRD) pattern validates the existence of metallic nickel and the phases (NiP, Ni2P, and Ni3P). The hydrophobic properties of the (NiP-TiC-SiC) NCCS generated at (95⁰C for 30 minutes) increased to (127.260). The corrosion behavior was studied via the electrochemical method, which was done in the (3.5 wt%) NaCl at (25⁰C) and the results showed that the addition of (TiC) together with (SiC) nanoparticles shows a significant enhancement in the polarization resistance, the maximum polarization resistance value was obtained for (NiP-TiC-SiC) prepared at (60 minutes 85⁰C) and it is equal to (56.31419 kΩ.cm).

Keywords

• electroless nip
• coating
• nanoparticles
• contact angle
• corrosion