Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-25T15:54:08.380Z Has data issue: false hasContentIssue false
  • English
  • Français

Morphological Evolution of a Fully Faceted Grain Boundary

Published online by Cambridge University Press:  21 March 2011

D.L. Medlin  and
G. Lucadamo
D.L. Medlin
Affiliation:
Thin Film and Interface Science Department Organization 8721 Mail Stop 9161 Sandia National Laboratories Livermore, CA 94551, USA
G. Lucadamo
Affiliation:
Thin Film and Interface Science Department Organization 8721 Mail Stop 9161 Sandia National Laboratories Livermore, CA 94551, USA
Get access

Abstract

We examine the morphological evolution of faceted grain boundaries in gold during annealing. Experiments were performed on <111> oriented gold films composed of two Σ=3 related orientation variants. The boundaries between these variants initially possess a high density of finely spaced (<25 nm) facets on {112} type planes. During annealing a large proportion of these fine-scale corrugations are annihilated, and the facet distribution coarsens significantly. Through in situ transmission electron microscopy (TEM), we directly observe this coarsening process. These results show a more complex behavior than geometric models for facet evolution would suggest and point to the need for an improved understanding of facet-junction properties and the interactions between grain boundary facets and dislocations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 652: Symposium Y – Influences of Interface & Dislocation Behavior on Microstructure Evolution , 2000 , Y3.4
Copyright
Copyright © Materials Research Society 2001

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

REFERENCES

1. Grest, G.S., Srolovitz, D.J., Anderson, M.P., Acta metall. 33(3) (1985) 509–520.Google Scholar
2. Rollett, A.D., Srolovitz, D.J., Anderson, M.P., Acta metall. 37(4) (1989) 1227–1240.Google Scholar
3 Yang, W., Chen, L.Q., Messing, G.L., Mat. Sci. and Eng. A195 (1995) 179–187.Google Scholar
4. Kazaryan, A., Wang, Y., Dregia, S.A., Patton, B.R., Phys Rev. B 61(21) (2000) 14275–14278.Google Scholar
5. Taylor, J.E., Cahn, J.W., and Handwerker, C.A., Acta metall. mater. 40(7) (1992) 1443–1474.Google Scholar
6. Taylor, J.E., Acta metall. mater. 40 (7) (1992)1475–1485.Google Scholar
7. Gurtin, M.E. and Voorhees, P.W., Acta mater. 46 (6) (1998) 2103–2112.Google Scholar
8. Taylor, J.E. and Cahn, J.W., Physica D. 112 (1998) 381–411.Google Scholar
9. Pashley, D.W. and Stowell, M.J., Phil. Mag. 8 (1963) 1605–1632.Google Scholar
10. Stowell, M.J. in “Epitaxial Growth: Part B”, Matthews, J.W. (ed.) (Academic Press, New York, 1975) pp. 437–492.Google Scholar
11. Horizontal {111} grain boundary facets (i.e., the normal {111} twin) can also be present in such films. However only boundaries on vertical facets were considered in this paper.Google Scholar
12. Hetherington, C.J.D., Dahmen, U., Pénisson, J.-M., in “Atomic Resolution Microscopy of Surfaces and Interfaces,” ed. Smith, D.J. (MRS Proceedings, Vol. 466, 1997) 215–226.Google Scholar
13. Lines parallel with the horizontal and inclined facets were extended from the intersections of the boundary with, respectively, the left and top edges of the image. A third line was constructed through the intersection of these two lines at an angle midway between the two facet angles. The intersection of this third line with the boundary edge defines the zero coordinate.Google Scholar
14. Hetherington, C.J.D. in “Problem Solving with Advanced Transmission Electron Microscopy,” eds. Bentley, J. et al. , (MRS Proceedings, Vol. 589, 2000)Google Scholar
15. Sutton, A.P. and Balluffi, R.W., “Interfaces in Crystalline Materials,” (Clarendon Press, Oxford, 1995) pg. 371.Google Scholar