Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Fabrication of multi-scale periodic surface structures on Ti-6Al-4V for modified wettability applications by Direct Laser Writing and Direct Laser Interference Patterning
Research Areas
  • Mechanical aeronautics and naval engineering
Hierarchical surface patterns fabricated on Ti-6Al-4V alloy combining two laser micro-machining techniques are presented. The used technologies are based on nanosecond Direct Laser Writing and picosecond Direct Laser Interference Patterning. Squared shape micro-cells with different hatch distances were produced by Direct Laser Writing with depths values in the micro-scale, forming a well-defined closed packet. Subsequently, cross-like periodic patterns were fabricated by means of Direct Laser Interference Patterning using a two-beam configuration, generating a dual-scale periodic surface structure in both micro- and nano-scale due to the formation of Laser-Induced Periodic Surface Structure after the picosecond process. As a result a triple hierarchical periodic surface structure was generated. The surface morphology of the irradiated area was characterized with scanning electron microscopy and confocal microscopy. Additionally, static contact angle measurements were made to analyze the wettability behavior of the structures, showing a hydrophobic behavior for the hierarchical structures.
Mid term meeting of the LASER4FUN project.
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  • Autor: Daniel Huerta Murillo (UPM)
  • Autor: A. I. Aguilar-Morales (Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS)
  • Autor: S. Alamri (Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS)
  • Autor: Jose Teixeira Cardoso (UPM)
  • Autor: R. Jagdheesh (UPM Laser Centre)
  • Autor: A.F. Lasagni Lasagni (Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS)
  • Autor: Jose Luis Ocańa Moreno (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro Laser
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)