Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-09T07:15:11.829Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanisms of Layer Structure Formation in Peritectic Alloys

Published online by Cambridge University Press:  10 February 2011

P. Mazumder ,
R. Trivedi  and
A. Karma
P. Mazumder
Affiliation:
Department of Mechanical Engineering
R. Trivedi
Affiliation:
Department of Material Science and Engineering, [email protected]
A. Karma
Affiliation:
Department of Physics, Northeastern University, Boston, MA
Get access

Abstract

The mechanisms of layer structure formation in the two phase region of peritectic systems are discussed. Under diffusive growth conditions, a banded structure is predicted within a narrow composition range in the hypoperitectic composition. Experimental studies show the formation of an oscillatory structure in the hyperperitectic region. It is shown that this structure is induced by convection in the melt, and it is a novel structure in which a large single tree-like structure of primary phase is surrounded by the peritectic phase. Basic ideas of convection that lead to this tree-like morphology are described.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 481: Symposium P – Science and Technology of Semiconductor Surface Preparation , 1997 , 39
Copyright
Copyright © Materials Research Society 1998

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. Boettinger, W. J. Metall. Trans, 15, p. 2023 (1974).Google Scholar
2. Brody, H. D. and David, S. A., in Int. Conf. On Solidification and Casting, Sheffield, U. K., Institute of Metals, London, 1, p. 139 (1977)Google Scholar
3. Zeishler-Mashl, K. and Lograsso, T., Metall. Mater. Trans. 28A, 1543. (1997).Google Scholar
4. Trivedi, R., R. Metall. Trans, 26A, 1583 (1995).Google Scholar
5. Karma, A., Rappel, W-J., Fuh, B. C. and Trivedi, R. Metall. Mat. Trans. (in press)Google Scholar
6. Park, J. S. and Trivedi, R., J. Cryst. Growth, (in press)Google Scholar
7. Chang, C. J. and Brown, R. A., J. Crystal Growth, 63, p 343 (1983).Google Scholar
8. Batchelor, G. K., Quart. of Appl. Math., 12, p209 (1954).Google Scholar
9. Drazin, P. G. and , W, Reid, H, Hydrodynamic stability, Cambridge.Google Scholar
10. Shircliffe, T. G. L., Nature (1967) 489.Google Scholar