本项目基于仿生超疏水表面的研究基础，在航空用铝合金表面首先构筑多级结构（50 nm ~ 5 μm），随后开展超微小液滴（直径20 ~ 60 μm）条件下的静态和动态非润湿行为研究，建立相应的润湿界面模型。其次，重点研究特殊润湿界面模型下超微小液滴的结冰形核和长大机制，并从热力学和动力学角度分析超微小液滴的结晶过程。在此基础上，揭示多级结构表面超微小液滴形核的初始位置和固/液/气三相接触线对冰晶核生长取向行为的影响机制。最后，基于结冰风洞条件，研究超微小过冷液滴撞击多级结构表面的接触和附着行为，并开展多级结构表面的防覆冰机理研究，为飞机主动防冰技术的开发奠定理论基础。

Based on the research foundation of bio-inspired superhydrophobic surfaces, this project aims to construct the hierarchical structures (50 nm ~ 5 μm) on aluminum alloy substrates, investigate the static and dynamic non-wetting behaviors of micro droplets (diameter 20 ~ 60 μm), and establish the corresponding interface wetting model. Subsequently, we explore the ice nucleation and growth mechanism of the super-microdroplets under the special interface wetting model, and analyze the crystallization process from the thermodynamics and kinetics. On this basis, we expect to grasp the ice nucleation initial positions and the effect mechanism of triple-phase contact line on the growth directions of ice nucleus. Finally, we study the contact and adhesive behaviors of the impact super-microdroplets on the hierarchical structure surfaces and systematically evaluate the anti-icing properties in an icing wind tunnel, laying the theoretical foundation for developing the new type of anti-icing technology.