Characteristic modification of UHMWPE by laser-assisted ion implantation

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

doi:10.1080/10420150701778239

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 journal › Article › peer-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 language	English
Pages (from-to)	447-451
Number of pages	5
Journal	Radiation Effects and Defects in Solids
Volume	163
Issue number	4-6
DOIs	https://doi.org/10.1080/10420150701778239
Publication status	Published - Apr 2008
Externally published	Yes

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

Access to Document

10.1080/10420150701778239

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AU - Lorusso, A.

AU - Nassisi, V.

AU - Velardi, L.

AU - Raino, A. C.

AU - Torrisi, L.

AU - Margarone, D.

AU - Mezzasalma, A.

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AB - 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.

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KW - Laser-produced plasma

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