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Title: Ion implantation to reduce wear on polyethylene prosthetic devices. Rept. for Aug 89-Jan 91

Abstract

Researchers studied the use of ion implantation to improve the wear performance of ultra high molecular weight polyethylene (UHMWPE). UHMWPE samples were implanted with high energy ions, tested for wear performance, and compared to unimplanted control samples. Surface friction and hardness measurements, Raman scattering, Rutherford backscattering (RBS), water contact angle, and film transfer tests were performed to characterize the surface property changes of implanted UHMWPE samples. Results indicated a 90% reduction in wear on implanted UHMWPE disks. Implantation increased surface microhardness and surface energy. The Raman spectrum revealed a diamond-like signature, indicting carbon bonds of a different nature than those found in unimplanted polyehtylene. Photographic analysis of pins used in wear testing revealed differences between implanted and unimplanted samples in the polyethylene film transferred in the initial stages of wear from the disk to the pin.

Publication Date:
Research Org.:
Spire Corp., Bedford, MA (United States)
OSTI Identifier:
6110658
Report Number(s):
PB-92-113927/XAB; FR-60137
CNN: NSF-ISI88-21894
Resource Type:
Technical Report
Resource Relation:
Other Information: Sponsored by National Science Foundation, Washington, DC. Div. of Industrial Science and Technological Innovation
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; POLYETHYLENES; ION IMPLANTATION; WEAR; CARBON; CHROMIUM; COPPER; FRICTION; HARDNESS; RAMAN SPECTROSCOPY; RAYLEIGH SCATTERING; SURFACE ENERGY; SURFACE FINISHING; TITANIUM; TRIBOLOGY; WATERPROOFING; COHERENT SCATTERING; ELEMENTS; ENERGY; FREE ENERGY; LASER SPECTROSCOPY; MECHANICAL PROPERTIES; METALS; NONMETALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PHYSICAL PROPERTIES; POLYMERS; POLYOLEFINS; SCATTERING; SPECTROSCOPY; SURFACE PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS; 360605* - Materials- Radiation Effects; 360603 - Materials- Properties

Citation Formats

. Ion implantation to reduce wear on polyethylene prosthetic devices. Rept. for Aug 89-Jan 91. United States: N. p., 1991. Web.
. Ion implantation to reduce wear on polyethylene prosthetic devices. Rept. for Aug 89-Jan 91. United States.
. Wed . "Ion implantation to reduce wear on polyethylene prosthetic devices. Rept. for Aug 89-Jan 91". United States.
@article{osti_6110658,
title = {Ion implantation to reduce wear on polyethylene prosthetic devices. Rept. for Aug 89-Jan 91},
author = {},
abstractNote = {Researchers studied the use of ion implantation to improve the wear performance of ultra high molecular weight polyethylene (UHMWPE). UHMWPE samples were implanted with high energy ions, tested for wear performance, and compared to unimplanted control samples. Surface friction and hardness measurements, Raman scattering, Rutherford backscattering (RBS), water contact angle, and film transfer tests were performed to characterize the surface property changes of implanted UHMWPE samples. Results indicated a 90% reduction in wear on implanted UHMWPE disks. Implantation increased surface microhardness and surface energy. The Raman spectrum revealed a diamond-like signature, indicting carbon bonds of a different nature than those found in unimplanted polyehtylene. Photographic analysis of pins used in wear testing revealed differences between implanted and unimplanted samples in the polyethylene film transferred in the initial stages of wear from the disk to the pin.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {5}
}

Technical Report:
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