Nano-second UV laser processed micro-grooves on Ti6Al4V for biomedical applications

A. Y. Fasasi, S. Mwenifumbo, N. Rahbar, J. Chen, M. Li, A. C. Beye, Craig B. Arnold, W. O. Soboyejo

Research output: Contribution to journalArticle

64 Scopus citations

Abstract

Laser surface texturing can be used to produce well defined micro-grooves on biomedical materials such as Ti-6Al-4V. Such micro-grooves can be optimized to improve the integration with surrounding tissue. This paper examines the effects of Gaussian shaped beam profiles for nano-second laser processing on the laser micro-groove geometry, topography, and micro-structure of Ti-6Al-4V under atmospheric conditions. Laser and machining parameters such as pulse rate, scan speed, wavelength, groove width and pitch are shown to affect the resulting micro-groove geometries. In contrast to prior micro-groove studies using top-hat beam profiles with ultra-violet (UV) Excimer lasers or large area masking techniques, grooves produced with Nd:YVO4 exhibit improved roughness parameters and reduced heat-affected zones. Initial processing parameters are established for the fabrication of micro-groove geometries on flat geometries that are relevant to biomedical implants and devices.

Original languageEnglish (US)
Pages (from-to)5-13
Number of pages9
JournalMaterials Science and Engineering C
Volume29
Issue number1
DOIs
StatePublished - Jan 1 2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Biomedical devices
  • Heat-affected zones
  • Micro-grooves
  • Micro-structure
  • Topography
  • UV laser processing

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  • Cite this

    Fasasi, A. Y., Mwenifumbo, S., Rahbar, N., Chen, J., Li, M., Beye, A. C., Arnold, C. B., & Soboyejo, W. O. (2009). Nano-second UV laser processed micro-grooves on Ti6Al4V for biomedical applications. Materials Science and Engineering C, 29(1), 5-13. https://doi.org/10.1016/j.msec.2008.05.002