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Diamond-coated carbon fiber

Published online by Cambridge University Press:  03 March 2011

J. Ting
Affiliation:
Applied Sciences, Incorporated, Cedarville, Ohio 45314-0579
M.L. Lake
Affiliation:
Applied Sciences, Incorporated, Cedarville, Ohio 45314-0579
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Abstract

Diamond deposition was attempted on polyacrylonitrile (PAN) fiber and vapor grown carbon fiber (VGCF). PAN fibers were severely etched in a microwave plasma, whereas diamond was successfully deposited on VGCF. A diamond growth rate of 0.1 μm/h on VGCF was determined at a gas mixture of 99.9 sccm H2/0.1 sccm CH4 and a pressure of 30 Torr. It is proposed that diamond formation on VGCF occurs on not only the prism planes, but also the basal planes owing to the unique structure of VGCF. An explanation is proposed to explain diamond nucleation on the basal planes.

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Articles
Copyright
Copyright © Materials Research Society 1994

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References

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