【摘要】 对CVD方法制备的碳纳米管进行表面改性处理 ,然后在液相中分散 ,利用化学共沉积方法形成碳纳米管镍磷基复合镀层 ,研究了碳纳米管表面改性后的红外谱、碳纳米管复合镀层的表面形貌、硬度及摩擦学行为 .结果表明 :碳纳米管的加入明显地提高镍磷复合镀层的硬度和改善了镍磷复合镀层的摩擦性能 .硬度达到 94 6HV ,2 0N载荷时摩擦系数为 0 7,增至 80N时降为 0 6 ;相同条件下与传统耐磨材料SiC增强的镍磷基复合镀层相比 ,具有更低的摩擦系数和磨损量更多还原

【Abstract】 After being modified and dispersed uniformly in solution, the Ni-P-carbon nanotube composite coatings are prepared by chemical deposition. The surface morphologies of composite coatings are analyzed with a scanning electron microscope and the tribological properties of composite coatings are investigated. The results indicated that the addition of carbon nanotubes increased the microhardness and improved mechanical properties of the Ni-P composite coating significantly. Carbon nanotubes composite coatings exhibited lower friction coefficient and high wear resistance in comparison with Ni-P-SiC composite coatings.更多还原