Icing, the phenomenon of the formation and accumulation of ice or frost on a surface due to the solidification of water droplets at low temperature can be undesirable in many applications. Surface icing can lead to increased energy consumption in aerospace and automotive applications due to increased aerodynamic drag. Ice formation can also present a mechanical and electrical safety
hazard, and as such significant work has been done to produce surfaces with anti-icing properties through surface modification to decrease ice formation and adhesion to surfaces. One route toward
the generation of anti-icing surfaces is through laser surface processing. Laser micro/nano structuring of surfaces has shown a commendable progress in recent years due to advancements in laser source technology and reduction in capital costs for ultrafast femtosecond pulsed machining lasers. Laser material processing offers a rapid, scalable, and non-contact method for fabricating large area antiicing surfaces.
In this work, the production of anti-icing surfaces using femtosecond laser micro- and nanostructuring on aluminum alloy 7075 surfaces was examined. With an aim to optimize the anti-icing properties of the substrates, laser parameters such as pulse energy, repetition rate and beam scanning speed were varied to produce highly defined microstructures on the aluminum surface. Also examined was the use of scanning optics and spatial light modulation to allow upscaling of the laser process to large areas.
European Union’s Horizon 2020 Research and Innovation Program under grant agreement No. 862100 (NewSkin), Science Foundation Ireland (SFI) under Grant Numbers 16/RC/3872 and is co-funded under the European Regional Development Fund and by I-Form industry partners.
ID Code:
27472
Deposited On:
03 Aug 2022 09:50 by
Ronan Mccann
. Last Modified 14 Mar 2023 15:06