图 是Ni-Co合金镀层和n-Al2O3/Ni-Co合金纳米复合镀层的表面形貌，其中（a）Ni-Co合金，（b）n-Al2O3/Ni-Co合金纳米复合镀层，由图可知，共沉积纳米颗粒后镀层的表面均匀，致密，镀层质量较高，能谱分析纳米颗粒共沉积到镀层中。

Fig. shows the surface morphology of Ni-Co alloy plating and n-Al2O3/Ni-Co alloy nanocomposite plating, where (a) Ni-Co alloy, (b) n-Al2O3/Ni-Co alloy nanocomposite plating, it can be seen from the figure that the surface of the plating after co-deposition of nanoparticles is uniform and dense, and the quality of the plating is high, and the energy spectrum analysis of nanoparticles co-deposited into the plating.