DIRECT OBSERVATION OF RAPID SELF‐DIFFUSION ALONG DISLOCATIONS IN ALUMINUM
作者:
T. E. Volin,
R. W. Balluffi,
期刊:
Applied Physics Letters
(AIP Available online 1967)
卷期:
Volume 11,
issue 8
页码: 259-261
ISSN:0003-6951
年代: 1967
DOI:10.1063/1.1755125
出版商: AIP
数据来源: AIP
摘要:
Voids were produced by the precipitation of excess quenched‐in vacancies in aluminum. The annealing of these voids in thin foil specimens by a self‐diffusion mechanism was studied using transmission electron microscopy. The annealing rates of both isolated voids and voids which were connected to the foil surfaces by dislocations were observed. The voids which were hooked up to the surfaces by dislocations annealed out at appreciably higher rates than the isolated voids. The results indicate that the dislocations acted as rapid self‐diffusion pipes for the transport of atoms into the voids from the surfaces.
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