MoS2 coated with Al2O3 for Ni-MoS2/Al2O3 composite coatings by pulse electrodeposition

The MoS2 powders were coated with Al2O3 (5 wL%) through controlling hydrolysis of Al (NO3)(3) center dot 9H(2)O center dot MoS2 powder coated with Al2O3 was written as MoS2/Al2O3 hereinafter. MoS2/Al2O3 powders were put into Ni plating electrolyte bath. Cetyltrimethylammonium bromide (CTAB) the surfactant was also put into the bath. The experiment proves that MoS2/Al(2)O(3)particles were absorbed onto the Ni plate. The amount Of MoS2/ Al2O3 deposited on Ni plate rises with the increasing concentration Of MoS2/Al2O3 in the bath. The microhardness, micro-surface, phase and the tribological property of the MoS2/Al(2)O(3)multi-plating coating were measured and analyzed, The performances of microhardness and wear resistance of the Ni-MoS2/Al2O3 composite are better than those of Ni-MoS2 composite. (c) 2007 Elsevier B.V. All rights reserved.