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Misfit Dislocations in the Interface between the Metallic and Insulating Phases in Cr Doped V203

Published online by Cambridge University Press:  21 February 2011

Nobuo Otsuka
Affiliation:
School of Materials Engineering, Purdue University, West Lafayette, IN 47907, U.S.A.
Hiroshi Sato
Affiliation:
School of Materials Engineering, Purdue University, West Lafayette, IN 47907, U.S.A.
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Abstract

The formation of misfit dislocations in the interface between the metallic and insulating phases which occur in 1.2% Cr doped V203 near room temperature was confirmed by TEM. Orientations of Burgers vectors of misfit dislocations were determined by the weak beam technique. The Burger vectors were parallel to principal axes in the basal plane (<100>) and inclined somewhat to interfaces. The Burgers vectors of misfit dislocations are, however, close enough to the direction of the maximum misfit in the interface. Only one or two misfit dislocations appear in an interface regardless of the thickness of specimens, and these were always located near the surface.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

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