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Atomic Displacements Around Nitrogen Interstitial Impurities in Ta and Nb

Published online by Cambridge University Press:  26 February 2011

S. Rao ,
E. J. Savino  and
C. R. Houska
S. Rao
Affiliation:
Department of Materials Engineering Virginia Polytechnic Institute and State University Blacksburg, VA 24061
E. J. Savino
Affiliation:
Department of Materials Engineering Virginia Polytechnic Institute and State University Blacksburg, VA 24061
C. R. Houska
Affiliation:
Department of Materials Engineering Virginia Polytechnic Institute and State University Blacksburg, VA 24061
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Abstract

The core as well as the long range elastic displacements around N octahedral interstitial atoms in Ta and Nb are modelled using the Green Function – Kanzaki force method. The theoretical calculations are compared with experimental attenuation factor and diffuse scattering data, reported in the literature, for both N in Nb and N in Ta [1,2,3]. It is shown that a third neighbor radial Kanzaki force model is needed to explain the experimental findings, and the long range elastic displacement field is non-spherical.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 82: Symposium I – Characterization of Defects in Materials , 1986 , 187
Copyright
Copyright © Materials Research Society 1987

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References

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