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Project

PhD in Ultrafast Laser Surface Processing - BEST

The design of efficient cooling-heating devices is a crucial task in several applications, such as microelectronics and aerospace engineering. The efficiency of these cooling-heating systems impacts our environment and the energy consumption of devices that we use in our daily life (e.g. mobile phones, tablets, computers). Although new cooling technologies have been developed for decades, the use of high power devices today and future miniaturization of mechanical and electronic components is still coupled to a lack of efficient heat dissipation methods, leading to an enormous technological bottleneck. One of the most effective ways to remove heat from a surface is through boiling. The enhancement of heat removal can be obtained by functionalizing the surface through tailoring the roughness, chemical properties, wettability, and creating particular geometrical micro- and nano-features like fins, channels, or cavities. In this context, the project will address the design and development of smart surfaces for boiling heat transfer enhancement by femtosecond laser texturing. The project tasks will focus on the fabrication of multi-scale textures on metallic surfaces, making use of our unique multiaxis femtosecond laser micromachining center. The work will include the design of smart surfaces for the selected heat transfer application, their realization through innovative ultrafast laser micromachining techniques as well as their characterization and testing in collaboration with heat transfer specialists working on the project.

Date:10 Oct 2022 →  Today
Keywords:Laser surface texturing, Boiling heat transfer
Disciplines:Heat transfer, Manufacturing processes, methods and technologies, Microfabrication and manufacturing
Project type:PhD project