Pulse Duration and Wavelength Effects on the Surface Topography of Direct Laser Interference Patterning Treated Titanium Specimen

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Frederic Schell - , Fraunhofer-Institut für Werkstoff- und Strahltechnik (Autor:in)
  • Avinash Hariharan - , Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (Autor:in)
  • Phil Goldberg - , Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (Autor:in)
  • Robert Baumann - , Professur für Laserbasierte Fertigung (Autor:in)
  • Erwin Jaeger - , TOPAG Lasertechnik GmbH (Autor:in)
  • Annett Gebert - , Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (Autor:in)
  • Christoph Zwahr - , Fraunhofer-Institut für Werkstoff- und Strahltechnik (Autor:in)
  • Andres F. Lasagni - , Professur für Laserbasierte Fertigung, Fraunhofer-Institut für Werkstoff- und Strahltechnik (Autor:in)

Abstract

With rising prevalence of bone and skeletal diseases around the world, combatting implant failure through novel approaches has become a growing area of research. A novel way to produce tailored implants is additive manufacturing, which offers unprecedented design flexibility. On the other hand, the osseointegration of such implants can be optimized by applying periodic micro-textures on the surface, using laser-based techniques. In particular, the technique of Direct Laser Interference Pat-terning (DLIP) offers both high throughput and the possibility to produce structures with small feature sizes. In this work, DLIP is applied to produce line-like micro textures on additively manufactured Ti-13Nb-13Zr parts. Using different solid-state lasers, the effect of pulse durations in the nanosecond to femtosecond regime and laser wavelengths from the ultraviolet to near infrared spectrum on the micro texture topography is reported. For each wavelength and pulse duration, laser parameters are varied systematically. The surface topography of the specimens is characterized through scanning -electron microscopy, and surface roughness is measured with confocal microscopy. Interaction with nanosecond pulses is characterized by melting, resulting in mostly smooth textures, whereas picosec-ond and femtosecond pulses produce hierarchical textures with laser-induced periodic surface struc-tures.

Details

OriginalspracheEnglisch
Seiten (von - bis)199-206
Seitenumfang8
FachzeitschriftJournal of laser micro nanoengineering
Jahrgang17
Ausgabenummer3
PublikationsstatusVeröffentlicht - Dez. 2022
Peer-Review-StatusJa

Externe IDs

Scopus 85145876106

Schlagworte

Schlagwörter

  • Additive manufacturing, Direct laser interference patterning, Femtosecond, Microtextures, Nanosecond, Picosecond