Crystal anisotropy and growth directions in directional solidificationJ. 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.
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