Erosion resistant anti-ice surfaces generated by ultra short laser pulses
conference paper
Wetting properties of a wide range of materials can be modified by accurate laser micromachining with ultra short laser pulses. Controlling the surface topography in a micro and sub-micrometer scale allows the generation of water-repellent surfaces, which remain dry and prevent ice accumulation under certain conditions. The use of ultra short pulse lasers provides a method to generate a pattern on the surface of hard materials with micrometric scale features that are required for reaching the super-hydrophobic state. Water repellent structures usually have a poor structural strength and as a result their properties are quickly deteriorated when used under working conditions; hence a durable surface is highly desired. The combination of laser processing with plasma techniques provides the means to create robust Lotus-like structures. This paper investigates the anti-ice properties of plasma deposited hard coatings, e.g. diamond-like carbon, in combination with laser machined patterns. These hard coatings with reduced surface energy and adjustable surface topography improve the erosion resistance of super-hydrophobic surfaces, and make them more suitable for use under harsh environmental conditions.
TNO Identifier
427550
ISSN
18753884
Source title
6th International Conference on Laser Assisted Net Shape Engineering, LANE 2010, 21-24 September 2010, Erlangen, Germany
Pages
231-235
Files
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