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Electrical Pulsing During Directional Solidification: Analysis of Transients by Laplace Transform

Published

Author(s)

Sam R. Coriell, Geoffrey B. McFadden, B Billia, H N. Thi, Y Dabo

Abstract

The effect of the instantaneous application of an electric current during the directional solidification of a binary alloy is considered. The initial state consists of steady-state solidification at constant velocity. It is assumed that the electric current is sufficiently small that its application can be treated as a small perturbation. The problem is solved by Laplace transform techniques and the results are compared to numerical calculations for arbitrary currents. The Laplace transform allows for an understanding of the discontinuities resulting from the discontinuous electric pulse.
Citation
Journal of Crystal Growth
Volume
216
Issue
No. 1-4

Keywords

alloy solidification, bismuth-antimony, microsegregation, peltier effect

Citation

Coriell, S. , McFadden, G. , Billia, B. , Thi, H. and Dabo, Y. (2000), Electrical Pulsing During Directional Solidification: Analysis of Transients by Laplace Transform, Journal of Crystal Growth (Accessed May 30, 2024)

Issues

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Created July 1, 2000, Updated February 17, 2017