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Aggregation and Dispersal of Radiation Damage in Graphite

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Abstract

FOLLOWING pioneering work by Grenall1, Williamson2 has used the technique of transmission electron microscopy to elucidate some aspects of the behaviour of dislocations in natural crystals of graphite, and Amelinckx and Delavignette3 have demonstrated the formation of vacancy loops in quenched material. We have repeated some of these observations and applied the method to the study of neutron irradiation damage and its behaviour in crystals annealed up to 2,500° C. Our results appear to be consistent with those of Bollmann4, who obtained photographs of defects in artificial graphite annealed up to 400° C.

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References

  1. Grenall, A., Nature, 182, 448 (1958).

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  2. Williamson, G. K., Proc. Roy. Soc., A, 257, 457 (1960).

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  3. Amelinckx, S., and Delavignette, P., Phys. Rev. Letters, 5, 50 (1960).

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  4. Bollmann, W., Phil. Mag., 5, 621 (1960).

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  5. Rang, O., Z. Phys., 136, 465 (1953).

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  6. Simmons, J. H. W., Industrial Carbon and Graphite, 511 (1958).

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Authors and Affiliations

  1. Metallurgy Division, Atomic Energy Research Establishment, Harwell, Berks

    W. N. REYNOLDS, P. A. THROWER & B. E. SHELDON

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  1. W. N. REYNOLDS
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  2. P. A. THROWER
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  3. B. E. SHELDON
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REYNOLDS, W., THROWER, P. & SHELDON, B. Aggregation and Dispersal of Radiation Damage in Graphite. Nature 189, 824–826 (1961). https://doi.org/10.1038/189824b0

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