Femtosecond laser texturing creates hydrophobic and hydrophilic surfaces with hierarchical structures on metals and other materials. Hydrophobic surfaces have potential for self-cleaning, anti-icing and other properties. Hydrophilic surfaces are used for coating adhesion and medical implant osseointegration, and can be designed to direct fluid flow. These properties are achieved through flexible surface manipulation, making femtosecond laser texturing a useful tool in various applications such as medical tool functionalization, fluid separation and friction manipulation.
A hydrophobic surface formed on a copper alloy sample using femtosecond laser texturing. The contact angle between this surface and a water drop is 150 degrees, which means that the surface has the potential for self-cleaning, anti-icing and other properties linked to hydrophobicity.
A feasibility study is composed of several steps, including researching methods for fabricating micro-structures, fabricating a micro-structure prototype, measuring and aligning the prototype with technical requirements, and finally preparing a study report.