Letter | Published:

Dependence on Temperature of the Interlayer Spacing in Carbons of Different Graphitic Perfection

Naturevolume 187pages10151016 (1960) | Download Citation



IN a previous communication1, attention was directed to important inconsistencies and gaps in the literature concerning thermal expansion in graphitic carbons perpendicular to the hexagonal layer-planes. Preliminary experiments were reported, and, while these clarified the picture to some extent, the need for further experiments at higher (above 1,200° C.) and lower (below 20° C.) temperatures was indicated. Special diffractometer techniques required for these measurements have now been developed and will be described elsewhere : meanwhile, the extended results are reported.

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  1. 1

    Steward, E. G., and Cook, B. P., Nature, 185, 78 (1960).

  2. 2

    Bacon, G. E., and Warren, B. E., Acta Cryst., 9, 1029 (1956).

  3. 3

    Baskin, Y., and Meyer, L., Phys. Rev., 100, 544 (1955).

  4. 4

    Bacon, G. E., Acta Cryst., 4, 558 (1951).

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  1. Research Laboratories, The General Electric Co., Ltd., Wembley, England

    • E. G. STEWARD
    • , B. P. COOK
    •  & E. A. KELLETT


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