Ultra short pulse laser generated surface textures for anti-ice applications in aviation

Gerardus Richardus, Bernardus, Engelina Römer, D. Arnaldo del Cerro, M.N.W. Groenendijk, Ronald C.J. Sipkema, R.C.J. Sipkema, Bert Huis in 't Veld

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

13 Citations (Scopus)
128 Downloads (Pure)

Abstract

By laser ablation with ultra short laser pulses in the pico- and femto-second range, well controlled dual scaled micro- and nano-scaled surface textures can be obtained. The micro-scale of the texture is mainly determined by the dimensions of the laser spot, whereas the superimposed nano-structure is the result of socalled laser induced “self organizing nanostructuring”. By controlling this micro-nano surface texture, it is possible to modify the natural hydrophobicity of materials. This paper investigates the anti-ice properties of these hydrophobic micro-nano surface textures. Leading edges, engine inlets etc. of airplanes are prone to iceaccretion in certain icing conditions. Ice can distort the flow of air over the wing, reducing the aircrafts aerodynamic performance. Moreover, take-off is not permitted if ice contamination on the aircraft's surfaces exists. Two materials, popular in aviation, a titanium alloy (Ti-6Al-4V) and a stainless steel (1.4544.9), were laser-machined using UV laser pulses of 6.7 ps at 200 kHz. Surface textures were physically analyzed using optical microscopy and SEM. Coatings, on top of the textures, were applied to create super-hydrophobicity. The hydrophobicity of the surfaces was quantified by contact angle measurements. The anti-ice properties of the surfaces were tested in a climate chamber.
Original languageEnglish
Title of host publicationProceedings of the ICALEO 2009
Place of PublicationOrlando, Fl
PublisherLaser Institute of America
Pages30-37
Number of pages8
ISBN (Print)978-0-912035-59-8
Publication statusPublished - 2 Nov 2009
Event28th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2009 - Orlando, United States
Duration: 2 Nov 20095 Nov 2009
Conference number: 28

Publication series

Name
PublisherLaser Institute of America

Conference

Conference28th International Congress on Applications of Lasers & Electro-Optics, ICALEO 2009
Abbreviated titleICALEO
CountryUnited States
CityOrlando
Period2/11/095/11/09

Keywords

  • METIS-258960
  • IR-82890
  • EC Grant Agreement nr.: FP7/2007-2013

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