Carbon material originating from graphite and method of producin

Details Carbon material originating from graphite and method of producin Carbon material originating from graphite and method of producin

1997-01-17

1999-07-20

Bos, Steven

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

423445R, B32B 900

Patent

active

059254653

ABSTRACT:
A novel carbon material is obtained by bending at least one carbon atom layer of graphite in at least one selected region along either, or both, of lines I and II in FIG. 1. The bending can be accomplished by scanningly picking the carbon atom layer(s) with a probe of an atomic force microscope or another scanning microscope. The obtained carbon material has at least one round bend having a width of 0.1-10 nm and at least one flap region having a triangular, rectangular or still differently polygonal shape in plan view. When the carbon atom layer(s) is bent with very small radii of curvature, a finely striped ridge-and-groove structure appears in the round bend. The physical properties of the obtained carbon material are uniquely determined by the direction(s) of bending, width of each bend, shape and size of each flap region and the stripe pitch of the ridge-and-groove structure.

REFERENCES:
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Applied Physics Letters, vol. 55, No. 17, Oct. 23, 1989, pp. 1727-1729, T.R. Albrecht et al, "Nanometer-scale hole formation on graphite using a scanning tunneling microscope".
Journal of Vacuum Science & Technology, B, vol. 10, No. 5, Sep./Oct. 1992, pp. 2316-2322, D.R. Baselt et al., "Lateral forces during atomic force microscopy of graphite in air".
Ge et al., "Vapor-Condensation Generation and STM Analysis or Fullerene Tubes" Science vol. 260 Apr. 23, 1993 pp. 515-518.
Ugarte, "Curling and closure of graphitic networks under electron-beam irradiation" Nature vol. 359 Oct. 22, 1992 pp. 707-709.
Sumio Iijima, "Helical microtubules of graphitic carbon", Nature, vol. 354, 1991, pp. 56-58. (no month).
Peterson in Science News vol. 143 p. 214 1993 (no month given) "Wrapping carbon into superstrong tubes".

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