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Picosecond laser processing of hierarchical micro-nanostructures on Ti-alloy upon pre- and post-anodization

  • Recent publications indicate that the order of electrochemical anodization (before or after the laser-processing step) plays an important role for the response of boneforming osteoblasts – an effect that can be utilized for improving permanent dental- or removable bone-implants. For exploring these different surface functionalities, multi-method chemical and structural characterizations were performed for two different characteristic micro-spikes covered by nanometric laserinduced periodic surface structures (LIPSS) on Ti-6Al-4V upon irradiation with nearinfrared ps-laser pulses (1030 nm wavelength, ~1 ps pulse duration, 66 & 80 kHz pulse repetition rate) at two distinct sets of laser fluence and beam scanning parameters. This involves morphological and topographical investigations by scanning electron microscopy (SEM) and white light interference microscopy (WLIM), near-surface chemical analysis by X-ray photoelectron spectroscopy (XPS) and hard X-ray photoelectron spectroscopyRecent publications indicate that the order of electrochemical anodization (before or after the laser-processing step) plays an important role for the response of boneforming osteoblasts – an effect that can be utilized for improving permanent dental- or removable bone-implants. For exploring these different surface functionalities, multi-method chemical and structural characterizations were performed for two different characteristic micro-spikes covered by nanometric laserinduced periodic surface structures (LIPSS) on Ti-6Al-4V upon irradiation with nearinfrared ps-laser pulses (1030 nm wavelength, ~1 ps pulse duration, 66 & 80 kHz pulse repetition rate) at two distinct sets of laser fluence and beam scanning parameters. This involves morphological and topographical investigations by scanning electron microscopy (SEM) and white light interference microscopy (WLIM), near-surface chemical analysis by X-ray photoelectron spectroscopy (XPS) and hard X-ray photoelectron spectroscopy (HAXPES), as well as structural material examination via X-ray diffraction (XRD) measurements. The results allow to qualify the laser ablation depth, assess the spike geometry and surface roughness parameters, and provide detailed insights into the near-surface oxidation that may cause the different cell growth behavior for pre- or post-anodized medical implants.zeige mehrzeige weniger

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Metadaten
Autor*innen:Heike Voss
Koautor*innen:Xenia Knigge, D. Knapic, Matthias Weise, Mario Sahre, Jörg Radnik, Kai Müller, Karsten Wasmuth, W. Baumgartner, Jörg Krüger, J. Heitz, A. W. Hassel, Vasile-Dan Hodoroaba, Jörn Bonse
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2023
Organisationseinheit der BAM:6 Materialchemie
6 Materialchemie / 6.1 Oberflächen- und Dünnschichtanalyse
6 Materialchemie / 6.2 Material- und Oberflächentechnologien
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik
Freie Schlagwörter:Hard X-ray photoelectron spectroscopy (HAXPES); Hierarchical micro-nanostructures; Laser-induced periodic surface structures (LIPSS); Ti6Al4V alloy; Ultrashort laser processing
Themenfelder/Aktivitätsfelder der BAM:Material
Material / Nano
Veranstaltung:E-MRS Spring Meeting 2023
Veranstaltungsort:Strasbourg, France
Beginndatum der Veranstaltung:29.05.2023
Enddatum der Veranstaltung:02.06.2023
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:24.06.2024
Referierte Publikation:Nein
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