Russian Journal of Physical Chemistry A

, Volume 91, Issue 13, pp 2696–2701 | Cite as

Pulsed TEA CO2 Laser Irradiation of Titanium in Nitrogen and Carbon Dioxide Gases

  • J. Ciganovic
  • P. Matavulj
  • M. Trtica
  • J. Stasic
  • J. Savovic
  • S. Zivkovic
  • M. Momcilovic
Photochemistry and Magnetochemistry

Abstract

Surface changes created by interaction of transversely excited atmospheric carbon dioxide (TEA CO2) laser with titanium target/implant in nitrogen and carbon dioxide gas were studied. TEA CO2 laser operated at 10.6 μm, pulse length of 100 ns and fluence of ∼17 J/cm2 which was sufficient for inducing surface modifications. Induced changes depend on the gas used. In both gases the grain structure was produced (central irradiated zone) but its forms were diverse, (N2: irregular shape; CO2: hill-like forms). Hydrodynamic features at peripheral zone, like resolidified droplets, were recorded only in CO2 gas. Elemental analysis of the titanium target surface indicated that under a nitrogen atmosphere surface nitridation occurred. In addition, irradiation in both gases was followed by appearance of plasma in front of the target. The existence of plasma indicates relatively high temperatures created above the target surface offering a sterilizing effect.

Keywords

TEA CO2 laser titanium implant surface modification controllable gas atmosphere 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • J. Ciganovic
    • 1
    • 2
  • P. Matavulj
    • 2
  • M. Trtica
    • 1
  • J. Stasic
    • 1
  • J. Savovic
    • 1
  • S. Zivkovic
    • 1
  • M. Momcilovic
    • 1
  1. 1.Institute of Nuclear Sciences VincaUniversity of BelgradeBelgradeSerbia
  2. 2.School of Electrical EngineeringUniversity of BelgradeBelgradeSerbia

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