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
Year:2018
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
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.
International
Si
Congress
Mid term meeting of the LASER4FUN project.
970
Place
Zaragoza
Reviewers
No
ISBN/ISSN
CDP08UPM
Start Date
24/10/2017
End Date
27/10/2017
From page
1
To page
1
Mid term meeting of the LASER4FUN project.
Participants
  • 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 Ocaña Moreno (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación en Ingeniería y Aplicaciones del Láser
  • Departamento: Física Aplicada e Ingeniería de Materiales
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