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Science 12 February 1965:
Vol. 147. no. 3659, pp. 733 - 734
DOI: 10.1126/science.147.3659.733
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Articles

Screw Dislocations in Graphite

G. R. Hennig 1

1 Argonne National Laboratory, Argonne, Illinois

Graphite contains varying concentrations of screw dislocations whose Burgers vector parallels the c axis. Single crystals of natural graphite contain very few such dislocations; furthermore, their Burgers vector always exceeds 450 angstroms. Pyrolytic graphites annealed above 3000°C contain abundant screw dislocations, ranging from 106 to 5 x 108 per square centimeter in two different samples prepared by somewhat different methods. The Burgers vectors of these screws are predominantly 3.35 angstroms.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Kinetics of Single-Layer Graphite Oxidation: Evaluation by Electron Microscopy.
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