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Continuum Modeling of Stress-Driven Surface Diffusion in Strained Elastic Materials

Published online by Cambridge University Press:  15 February 2011

L. B. Freund ,
G.E. Beltz  and
F. Jonsdottir
L. B. Freund
Affiliation:
Division of Engineering, Brown University, Providence, RI 02912
G.E. Beltz
Affiliation:
Division of Engineering, Brown University, Providence, RI 02912
F. Jonsdottir
Affiliation:
Division of Engineering, Brown University, Providence, RI 02912
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Abstract

The free energy of a deformable crystal is assumed to consist of elastic strain energy and surface energy, and the chemical potential for surface diffusion at constant temperature is obtained under this assumption. The result is applied in considering the phenomena of instability of a flat surface in a stressed material under fluctuations in surface shape, and the development of surface roughness due to the proximity of misfit dislocations to the free surface of the material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 308: Symposium M1 – Thin Films: Stresses and Mechanical Properties IV , 1993 , 383
Copyright
Copyright © Materials Research Society 1993

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References

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