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Properties of Novel Fullerene Tubule Structures: A Computational Study

Published online by Cambridge University Press:  15 February 2011

Susan B. Sinnott ,
Carter T. White  and
Donald W. Brenner
Susan B. Sinnott
Affiliation:
Naval Research Laboratory, Surface Chemistry Branch, Code 6170, Washington, DC 20375- 5342
Carter T. White
Affiliation:
Naval Research Laboratory, Surface Chemistry Branch, Code 6170, Washington, DC 20375- 5342
Donald W. Brenner
Affiliation:
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695-7907
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Abstract

Theoretical Young's moduli have been estimated for several fullerene carbon tubule fibers along the tubule axis. These results indicate that carbon fibers composed of nested tubules could have a modulus nearly 1.4 times that of a conventional graphite whisker. The results also indicate that the modulus of the tubule fiber can be further increased by decreasing the distance between the close-packed tubules in the fiber. This is true for both nested and single-shell tubules, but is only significant for the latter. Taking advantage of this property of single-shell tubules, we have examined a hypothetical tubule-diamond composite that, if it could be produced, would yield a modulus greater than diamond while at the same time stabilizing the fiber against shear distortions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 359: Symposium G – Science and Technology of Fullerene Materials , 1994 , 241
Copyright
Copyright © Materials Research Society 1995

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References

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