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Wear of Ion Implanted Glassy Carbon

Published online by Cambridge University Press:  25 February 2011

John T. A. Pollock ,
Matthew Farrelly  and
Leszek S. Wielunski
John T. A. Pollock
Affiliation:
CSIRO Division of Materials Science and Technology, Lucas Heights Research Laboratories, Menai, NSW 2234, Australia.
Matthew Farrelly
Affiliation:
CSIRO Division of Materials Science and Technology, Lucas Heights Research Laboratories, Menai, NSW 2234, Australia.
Leszek S. Wielunski
Affiliation:
CSIRO Division of Materials Science and Technology, Lucas Heights Research Laboratories, Menai, NSW 2234, Australia.
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Abstract

Significantly improved wear properties are described for glassy carbon following implantation with 2 MeV helium and 50 keV nitrogen to doses in the range 1015–1017 ions cm−2. Implanted material is up to 100 times more wear resistant to diamond abrasion than unimplanted material. Enhanced wear resistance is available at the surface with nitrogen but lies below the surface with helium, reflecting the difference in modified depth associated with implant energy and ion mass. Unusually for ion implantation, dose related surface compaction is observed for both nitrogen and helium. Changes in microstructure during implantation with particular regard to collision processes and amorphisation of the graphitic fraction of glassy carbon are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 93: Symposium C – Materials Modification and Growth Using Ion Beams , 1987 , 317
Copyright
Copyright © Materials Research Society 1987

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References

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