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Ion Beam Modification of Glassy Carbon

Published online by Cambridge University Press:  26 February 2011

Leszek S. Wielunski
Affiliation:
CSIRO Division of Materials Science and Technology, PMB-7, Menai, NSW. 2234, Australia.
John T.A. Pollock
Affiliation:
CSIRO Division of Materials Science and Technology, PMB-7, Menai, NSW. 2234, Australia.
Matthew Farrelly
Affiliation:
CSIRO Division of Materials Science and Technology, PMB-7, Menai, NSW. 2234, Australia.
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Abstract

Implanted glassy carbon (GC; 50 keV, 1016 N+ cm-2) is reported to be 400 times more wear-resistant to 1 μm diamond polishing than unimplanted GC. A number of samples were implanted with 15N to produce the modified surface layer and to allow a very high sensitivity measurement of wear, using the 15N(p, α)12C nuclear reaction.

Optical interferometric wear measurements are also reported. Samples implanted with 1 MeV N to 1015 ions cm-2 indicated that the enhanced wear-resistance is correlated with the nuclear energy loss density within the ion range. Mechanisms likely to be responsible for the enhanced wear resistance are also discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

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