Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-19T15:45:49.019Z Has data issue: false hasContentIssue false

Morphological Stability of Semicoherent Solid-Solid Interfaces: a Simple Model

Published online by Cambridge University Press:  15 February 2011

Craig Rottman*
Affiliation:
North Dakota State University, Department of Physics, Fargo, ND 58105-5566
Get access

Abstract

The stability of semicoherent interfaces between two solids with small lattice mismatch is examined. I consider the cases in which the rotation θ between the two solids is both zero and small. The interface orientation, characterized by a single angle φ, is arbitrary. The interfaces are composed of regularly spaced misfit dislocations, steps, and lattice dislocations. For a wide range of φ, many flat interfaces are unstable with respect to breaking up into two interfaces of distinct orientations, one of which contains only one of the two types of dislocations possible.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Brooks, H., in Metal Interfaces (American Society for Metals, Cleveland, 1952), pp. 2064.Google Scholar
2. DiVincenzo, D.P., J. Phys. (Paris) Colloq. 46, C4243 (1985); D.P. Divincenzo and C. Rottman, Phys. Rev. B 37, 5242 (1988).Google Scholar
3. Read, W.T. and Shockley, W., Phys. Rev. 78, 275 (1950); W.T. Read, Dislocations in Crystals (McGraw-Hill, New York, 1953).Google Scholar
4. Herring, C., Phys. Rev. 82, 87 (1951); in Structure and Properties of Solid Surfaces, edited by R. Gomer and C.S. Smith (University of Chicago, Chicago, 1953), pp. 5–72.Google Scholar
5. Rottman, C., to be published.Google Scholar
6. Smith, D.A. and Hazzledine, P.M., Scr. Metall. 15, 393 (1981).CrossRefGoogle Scholar
7. He, Y., Jayaprakash, C., and Rottman, C., Phys. Rev. B 32, 12 (1985).Google Scholar