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Non‐Arrthenius Behaviour and Divacancy Contribution in Self‐Diffusion of 64 Cu in Cu
Author(s) -
Krautheim G.,
Neidhardt A.,
Reinhold U.,
Zehe A.
Publication year - 1979
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19790141216
Subject(s) - activation energy , arrhenius plot , self diffusion , arrhenius equation , diffusion , frequency factor , copper , atmospheric temperature range , materials science , range (aeronautics) , thermodynamics , bending , tracer , analytical chemistry (journal) , chemistry , physics , metallurgy , composite material , nuclear physics , self service , chromatography , marketing , business
The self‐diffusion of 64 Cu in Cu was investigated in the high temperature range (1078 to 1348 K), applying the tracer‐standard sectioning technique. For the frequency factor D 0 and the activation energy Q 0 we found D 0 = (0.68 −0.12 +0.16 )cm 2 · s −1 and Q 0 = (2.17 ± 0.02) eV. A slight bending of the Arrhenius plot suggests a divacancy contribution to the self‐diffusion of copper. Data sets used in an numerical analysis are in good accord with published results.