Preparation and characterization of Cu-SiC composite coatings
Cu-SiC composite coatings were prepared by ultrasonic-mechanical stirring-electrodeposition method.The preparation technology was optimized with orthogonal experiments,and the surface performances were investigated using scanning electron microscopy,energy dispersive spectrometer and wear test machine.The results indicate that the optimal parameters are listed as follows: ultrasonic power 200 W,stirring rate 300 r/min,SiC concentration 8 g/L,and current density 5 A/dm2.A compact surface and fine grain size of Cu-SiC composite coating can be obtained by using ultrasonic mechanical stirring-electrodeposition method,and the composite plating solution is stable.The Cu-SiC composite coating prepared with optimal parameters has better wear resistance.