TITLE:
Ending of Darken Equation and Intrinsic Diffusion Concept
AUTHORS:
Takahisa Okino
KEYWORDS:
Darken Equation; Kirkendall Effect; Intrinsic Diffusion; Fickian First Law
JOURNAL NAME:
Journal of Modern Physics,
Vol.4 No.11,
November
22,
2013
ABSTRACT: The well-known Darken equation has been widely accepted in analyzing
interdiffusion problems since 1948. The diffusion researchers have never conceived
a doubt about the validity of Darken equation for such a long time. However, it
is revealed that the Darken equation is inconsistent with the fundamental
theory in mathematics. At the same time, it is clarified that the well-known
intrinsic diffusion concept is an illusion. The present brief report will have
a great influence on matters of the research and education relevant to
diffusion problems not only in future but also in past, since the accumulated
diffusivity data analyzed by the invalid Darken theory and the misjudged
descriptions in existing text books should be revised or deleted as soon as
possible.