Study on Ni-P-(Ni/SiC)_P electroless composite coatings

In order to decrease the high cost of applications of naked (SiC)_P, (SiC)_P was surface-modified to (Ni/SiC)p by a simple electroless plating, then (Ni/SiC)_P particles were incorporated into the Ni-P plating solution to prepare Ni-P-(Ni/SiC)_P electroless composite coatings. The microstructure and properties of the Ni-P-(Ni/SiC)_P electroless composite coatings were investigated by metallo-graphic microscope, scanning electronic microscope (SEM), energy dispersive spectrum (EDS) and micro-sclerometer. Compared with the Ni-P coatings and the Ni-P-(SiC)_P coatings, the results show that the Ni-P-(Ni/SiC)_P electroless composite coatings has many merits such as the homogenous composition, thick coatings, high hardness and good wear-resisting properties, etc. The electroless plating method is very simple and the cost is very low, which may be avail to the further research of (SiC)_P reinforced the alloy coating and metal matrix composite.