Characteristic modification of UHMWPE by laser-assisted ion implantation

A. Lorusso*, V. Nassisi, L. Velardi, A. C. Raino, L. Torrisi, D. Margarone, A. Mezzasalma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

The purpose of this work is the characteristic modification by ion implantation of ultra high molecular weight polyethylene, and a preliminary study of its surface. This biomedical material has been chosen for its excellent chemical and physical properties. An ultraviolet-pulsed laser of 248nm was employed to produce, by laser ablation, C and Ti ions of different charges with current densities of the order of 10mA/cm2. The ions were accelerated by the application of a positive high voltage, 30kV, on the target support to accelerate ions to implant the polyethylene surfaces up to a depth of about 200nm. Preliminary results about surface properties indicate that implanted surfaces have higher wettability and micro-hardness values with respect to unimplanted ones.

Original languageEnglish
Pages (from-to)447-451
Number of pages5
JournalRadiation Effects and Defects in Solids
Volume163
Issue number4-6
DOIs
Publication statusPublished - Apr 2008
Externally publishedYes

Bibliographical note

Funding Information:
Authors thank INFN Commission V for the financial support given to the project PLATONE.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

  • Ion implantation
  • Laser-produced plasma
  • UHMWPE polyethylene

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

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