Biomimetic Superlyophobic Metallic Surfaces: Focusing on Their Fabrication and Applications

Abstract

Metals are indispensable engineered materials for day-to-day life. Researches focused on metallic surfaces with superlyophobicity (superhydrophobicity, superoleophobicity, underwater superoleophobicity and slippery characteristic) have attracted much attention recently. Nature is a magician that gives each organic life a unique advantage. Researchers have created a large number of biomimetic superlyophobic metallic surfaces through various approaches. These biomimetic superlyophobic metallic surfaces exhibit advantages in many applications, such as self-cleaning, corrosion resistance, anti-icing, and drag reduction. In this review, the specific fabrication and applications of biomimetic superlyophobic metallic surfaces were reported. The remaining challenges and future outlook of biomimetic superlyophobic metallic surfaces were preliminarily analyzed. It is hoped that the review will be essential for broadening the scope of potential applications of metals and providing a powerful reference for future research on metal-based advanced functional materials.

Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro–Nano-Roughened AA6082 Surfaces

“…In recent years, different methods have been reported in the literature to develop superhydrophobic surfaces, such as the spray technique [ 44 , 45 ], electrodeposition [ 46 , 47 ], and chemical etching [ 48 , 49 ]. The latter, which consists of a selective and controlled corrosion process, is one of the most promising methods for its industrial application development, due to its simplicity and low manufacturing costs [ 50 , 51 , 52 ].…”

“…So far, a few attempts have been made to assess the complex anisotropic textured wetting surface on metals using only laser-based texturing techniques such as femtosecond and picosecond lasers [ 66 , 67 ]. However, these techniques are inefficient and expensive [ 49 ]. Therefore, the identification of a simple and time-saving manufacturing method of a superhydrophobic surface with specific anisotropic behavior for industrial production is still a pending issue.…”

Research Progress on Corrosion Resistance of Magnesium Alloys with Bio-inspired Water-repellent Properties: A Review

“…Bio-inspired water-repellent surfaces with its unique interface characteristics and advantages have become a new idea to solve the corrosion problems of metal materials [40,41] . The bio-inspired water-repellent surfaces introduced in this article are divided into superhydrophobic surfaces and Slippery Liquid-Infused Porous Surfaces (SLIPSs) [42,43] . The fabrication of magnesium-based bio-inspired water-repellent surface helps to construct a function on the substrate of magnesium alloy, improving the corrosion resistance of magnesium alloy in an effective manner [44][45][46] .…”

Slippery liquid infused porous surfaces with corrosion resistance potential on aluminum alloy

“…Corrosion resistance technology mainly includes electrochemical protection, 7 surface nano crystallization protection 8 and preparation of a superhydrophobic surface. [9][10][11][12] Slippery liquid infused porous surfaces (SLIPS) use lubricating oil to replace the air in the microstructure gap on the surface of the substrate, with the help of capillary action to lock the lubricating oil in the microstructure and form an oil lm on the substrate. The oil lm blocks the contact between corrosive liquid and substrate, so as to achieve the purpose of corrosion resistance.…”