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Abstract
The dynamic chemical plating technique is used to deposit NiBP coatings with incorporation of polytetrafluoroethylene (PTFE) particles. This technique is faster and simpler to perform compared to other electroless deposition techniques. Using a double nozzle gun, metal salt solution and reducing agents are sprayed to the surface, forming a deposit. Using scanning electron microscopy morphology of the coatings was studied. By dynamic chemical plating technique films with maximum incorporation rate of vol % 21 PTFE were deposited. Tribological studies were conducted by a ball/surface tribometer, at different applied loads (5, 15, 30, 45, 60 N). Deposited films exhibited interesting tribological properties with a friction coefficient of 0.3 for a film containing vol % 21 PTFE. The coating has a tendency to peel off locally at high applied loads. Friction coefficient increased with decreasing PTFE content.