The use of ultrasound for Electrodeposition of Ni-nano Al 2O 3 Nanocomposite coating

In this research a nanocomposite coating with a Nickel background at the presence of nano alumina and at the presence of ultrasonic stirrer during coating were carried out by pulse electroplating. The coating morphology was then examined by a scanning electron microscope (SEM). The wear behavior of the coating was first evaluated by Pin on Plate method and then its corrosion behavior was evaluated by electrochemical impedance (EIS). Results showed that the highest weight neutral particles in the coating when using ultrasonic mixer and fully connected with the intensity 63 w/cm،2 by using ultrasonic mixer during the development of coated lump would will preveuted wearing and mechanism type is scratched. The results showed that it was possible to attain a nano composite coating with a better quality with regard to its morphology، wear، and mechanical properties in an optimal state with better severity of the ultrasonic stirring as compared with the severity of other ultrasonic stirrers as well as a magnetic stirrer.