Journal of Materials Science

, Volume 4, Issue 11, pp 985–988 | Cite as

Bulk diffusion enhancement due to grain-boundary migration

  • C. A. Pampillo
  • N. W. De Reca
Papers

Abstract

This paper reports bulk diffusion enhancement under conditions where grain-boundary migration and grain growth, or grain growth only take place during the time of the diffusion experiment.

Although a substantial contribution to diffusion takes place through grain-boundaries the penetration curves measured remain Gaussian, as suggested by Balluffi and Ruoff [3]. The apparent enhancement measured is about a factor of two. However, it is shown that the real enhancement due to migration of grain-boundaries during the diffusion experiment may be as large as a factor of fifty.

Keywords

Polymer Migration Substantial Contribution Bulk Diffusion Diffusion Experiment 

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References

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    P. G. Shewmon, “Diffusion in Solids” (Mc-GrawHill, New York, 1963).Google Scholar
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    E. W. Hart,Acta Met. 5 (1957) 597.Google Scholar
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    A. L. Ruoff andR. W. Balluffi,J. Appl. Phys. 34 (1963) 1848.Google Scholar
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    C. Leymonie, “Les Traceurs Radiactifs en Metallurgie Physique” (Dunod, Paris, 1960).Google Scholar
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    N. Walsoe De Reca andC. A. Pampillo,Acta. Met. 15 (1967) 1263.Google Scholar
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    D. L. Styris andC. T. Tomizuka,J. Appl. Phys. 34 (1963) 1001.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1969

Authors and Affiliations

  • C. A. Pampillo
    • 1
  • N. W. De Reca
    • 1
  1. 1.Division de MetallurgiaComision Nacional de Energia AtomicaBuenos AiresArgentina

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