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No Access Submitted: 05 August 1959 Published Online: 16 June 2004

  • Growth, Structure, and Properties of Graphite Whiskers

Journal of Applied Physics 31, 283 (1960); https://doi.org/10.1063/1.1735559
Roger Bacon
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  • Research Laboratories, National Carbon Company, Division of Union Carbide Corporation, Cleveland 1, Ohio
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  • Roger Bacon
ABSTRACT
Graphite whiskers have been grown in a dc arc under a pressure of 92 atmospheres of argon and at 3900°K. They are embedded in a solid matrix of graphite which builds up by diffusion of carbon vapor from the positive to the negative electrode. Diameters range from a fraction of a micron to over five microns, with recoverable lengths up to 3 cm. They consist of one or more concentric tubes, each tube being in the form of a scroll, or rolled‐up sheet of graphite layers, extending continuously along the length of the whisker, with the c axis exactly perpendicular to the whisker axis. They exhibit a high degree of flexibility, tensile strengths up to 2000 kg‐mm−2, Young's modulus in excess of 7×1012 dyne‐cm−2, and values of room‐temperature resistivity of around 65 μohm‐cm, which approximates the single crystal value.

REFERENCES
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  1. © 1960 The American Institute of Physics.

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