Ion Implantation on Ultra High Molecular Weight Polyethylene (Uhmwpe) for Medical Prosthesis
- 1 September 2003
- journal article
- research article
- Published by Informa UK Limited in Radiation Effects and Defects in Solids
- Vol. 158 (9), 621-633
- https://doi.org/10.1080/10420150310001595283
Abstract
In order to improve the wear resistance of ultra high molecular weight polyethylene (UHMWPE), a surface modification is induced by ion implantation of different ions at 300 keV energy with doses ranging between 1014 -1017 ions/cm2. Wear measurements, in terms of weight loss, are performed with a “pin on disc” friction machine; these tests measure the wear properly of the UHMWPE against a metallic probe before and after the ion implantation treatment. Results demonstrate that in the implanted samples the wear resistance increases by about 76% with respect to the non-irradiated samples. The irradiated polymeric layer was characterized with the mass quadrupole spectrometry, Raman spectroscopy, infrared absorption analysis, scanning electron microscopy, atomic force microscopy and calorimetric analysis. The results suggest that wear decrease effect can be attributed to the ion bombardment inducing a high carbon surface concentration and cross-linking effects in the irradiated polymeric layer. The irradiated UHMWPE surfaces find special applications in the field of the mobile prosthesis such as hip joints.Keywords
This publication has 9 references indexed in Scilit:
- Diverse cellular and apoptotic responses to variant shapes of UHMWPE particles in a murine model of inflammationBiomaterials, 2002
- Improved wear resistance of ultra-high molecular weight polyethylene by plasma immersion ion implantationWear, 2001
- Properties of crosslinked ultra-high-molecular-weight polyethyleneBiomaterials, 2000
- Surface modification of ion implanted ultra high molecular weight polyethyleneNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2000
- Unified wear model for highly crosslinked ultra-high molecular weight polyethylenes (UHMWPE)Biomaterials, 1999
- Radiation damage in PVT (Polyvinyltoluene) induced by energetic ionsRadiation Effects and Defects in Solids, 1998
- Effects of MeV ions on PE and PVDCNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1998
- The influence of stress conditions on the wear of UHMWPE for total joint replacementsJournal of Materials Science: Materials in Medicine, 1997
- BioceramicsPublished by Springer Science and Business Media LLC ,1992