具有高防冰性能的飞秒激光加工无涂层超疏水金属表面

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Abstract：As an eficient passive anti-icing method，the superhydrophobic surface can reduce icing process on metals in low temperatures. However， the usual organic low-surface-energy decorations are ten prone to age especially in harsh environments，leading to a decrease or complete failure the anti-icing performance. Here， we adopt a fabrication method femtosecond laser element-doping microstructuring to achieve inorganic superhydrophobic aluminum alloys surfaces through simultaneously modifying the surface prile compositions aluminum alloys. The obtained bionic anthilltribe structure with the low thermal conductivity，exhibits the superior delayed freezing time （8o3.3 s） the low ice adhesion （16μN） in comparison to the fluorosilane modified bare Al surfaces.Moreover， such an inherently superhydrophobic metal surface also shows the exceptional environmental durability in anti-icing performance， which confirms the effectiveness our superhydrophobic surface without the need for organic coatings.

Key words： inorganic superhydrophobic; anti-icing; Al alloys; femtosecond laser

摘要：超疏水表面作为一种有效的被动防冰方法，可以减少低温环境下金属表面的结冰。（剩余25098字）