对硅基磁控溅射铝镀层表面加载阴极电流,在镀层表面构建了微纳复合结构,并通过十四酸修饰获得稳定的超疏水膜。 研究了超疏水表面的形成机制与结构特征,分析了超疏水表面的抗腐蚀性能。 结果表明:经阴极刻蚀处理后,铝镀层表面形成了覆盖纳米级絮状物的腐蚀孔,呈现出珊瑚网状结构;再经十四酸有机修饰后,达到超疏水状态,十四酸在镀层表面形成了稳定的化学吸附,样品腐蚀阻效达到 98. 9% ,抗腐蚀性能显著提高。

A stable super-hydrophobic film was fabricated on silicon based aluminum coating by myristic acid chemically adsorbed on micro / nano composite structure constructed by cathodic etching process. The formation mechanism, microstructure and corrosion behavior of the film were characterized. The results suggest that the surface of the film is composed of micropores and coral-like structures with nano-sized floccules on their surface after treatment of cathodic etching. The surface of the myristic acid modified coating achieves super-hydrophobic and the myristic acid is chemically adsorbed on the surface. The super-hydrophobic treatment enhances the corrosion resistance of the coating greatly, and the corrosion impedance efficiency achieves as high as 98 . 9 % .