Nickel-multiwalled carbon nanotube composite coating on aluminum alloy rotor for textile industries

摘要

Nickel-based multiwalled carbon nanotube (Ni-MWCNT) composite coatings were electrodeposited over the inner groove of an aluminim alloy rotor with Zn-Ni interlayer. The surface of the composite coating was investigated by X-ray diffraction and scanning electron microscopy. The hardness of the coating was determined by Vicker's method. It was revealed that Ni-MWCNT composite coating has uniformity in thickness over the surface of the aluminim groove and also better particle distribution over the area. It was found that there was a significant improvement in the microhardness values of Ni-MWCNT composite coating than uncoated aluminum alloy rotor. In addition, the wear resistance of the composite coated increased nine times than the uncoated substrate. Thus, Ni-MWCNT composite coated aluminum alloy rotor can enhance the performance and life-time of the rotor in the textile industries.