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Surface Concentration of Defects on a Constrained System: a Molecular Dynamics Approach

Published online by Cambridge University Press:  26 February 2011

Vittorio Rosato  and
Michel Guillope
Vittorio Rosato
Affiliation:
Centre d'Etudes Nucléaires de Saclay - Département de Technologie, Section de Recherches de Métallurgie Physique - 91191 Gif sur Yvette Cedex France
Michel Guillope
Affiliation:
Centre d'Etudes Nucléaires de Saclay - Département de Technologie, Section de Recherches de Métallurgie Physique - 91191 Gif sur Yvette Cedex France
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Abstract

We have performed a systematic study to evaluate the structural response of a {110} fcc surface to an externally imposed elastic deformation, by Molecular Dynamics at a fixed temperature T=0.48T and T=0.68T (T melting point). For high contractions along the dense axis [110], surface concentration of defects (SCD) and diffusion coefficient increase with respect to the equilibrium values. The resulting surface disorder is similar to the one found, at equilibrium, at higher temperatures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 82: Symposium I – Characterization of Defects in Materials , 1986 , 511
Copyright
Copyright © Materials Research Society 1987

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References

REFERENCES

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