Europhys. Lett.
Volume 76, Number 2, October 2006
Page(s) 291 - 297
Section Condensed matter: structural, mechanical and thermal properties
Published online 08 September 2006
Europhys. Lett., 76 (2), pp. 291-297 (2006)
DOI: 10.1209/epl/i2006-10247-9

Crystal anisotropy and growth directions in directional solidification

J. Deschamps, M. Georgelin and A. Pocheau

IRPHE, Universités Aix-Marseille I & II, CNRS, Technopôle de Château-Gombert 49 rue Joliot-Curie, B.P. 146, F-13384 Marseille, Cedex 13, France

received 13 April 2006; accepted in final form 17 August 2006
published online 8 September 2006

In directional solidification, the growth directions of cells and dendrites into the melt vary with the pulling velocity from the direction of the thermal gradient to that of a principal crystalline axis. We experimentally determine them in a succinonitrile alloy in the whole available range of variables. Data reveal a non-linear collapse onto a master curve that synthetizes the orientational response of cells and dendrites to the growth conditions.

68.70.+w - Whiskers and dendrites (growth, structure, and nonelectronic properties).
81.10.Aj - Theory and models of crystal growth; physics of crystal growth, crystal morphology, and orientation.
81.30.Fb - Solidification.

© EDP Sciences 2006