Selection of stable growth conditions for the parabolic dendrite tip in crystallization of multicomponent melts / Alexandrov D. V.,Pinigin D. A. // TECHNICAL PHYSICS. - 2013. - V. 58, l. 3. - P. 309-315.

ISSN/EISSN:

1063-7842 / нет данных

Type:

Article

Abstract:

Free growth of a dendrite crystal in a stationary multicomponent melt is investigated. A mathematical model of the process is developed and its analytic solution is constructed. A stability criterion is obtained for a 2D parabolic dendrite and the refined relation is derived for the growth rate of the dendrite tip taking into account the anisotropy of surface tension at the solid phase-melt interface. It is shown that the accumulation of impurity in the front of a dendrite makes it tip thinner and reduces its velocity. The theory contains limiting transitions to the familiar dendrite growth criteria for one-component and binary systems.

Author keywords:

RAPID SOLIDIFICATION; PATTERN SELECTION; PLANAR INTERFACE; FORCED FLOW; STABILITY; ALLOYS; MODEL

DOI:

10.1134/S106378421303002X

Web of Science ID:

ISI:000316266200001

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	RAPID SOLIDIFICATION; PATTERN SELECTION; PLANAR INTERFACE; FORCED FLOW; STABILITY; ALLOYS; MODEL
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	Dmitri.Alexandrov@usu.ru
ResearcherID-Numbers	Alexandrov, Dmitri/D-2516-2016
ORCID-Numbers	Alexandrov, Dmitri/0000-0002-6628-745X
Funding-Acknowledgement	Russian Foundation for Basic Research {[}11-01-00137, 10-01-96045-Ural]; Federal Target Program ``Scientific and Academic-Teaching Staff of Innovative Russia{''}
Funding-Text	This study was financed in part by the Russian Foundation for Basic Research (project nos. 11-01-00137 and 10-01-96045-Ural) and the Federal Target Program ``Scientific and Academic-Teaching Staff of Innovative Russia{''} in 2009-2013.
Number-of-Cited-References	48
Usage-Count-Since-2013	7
Journal-ISO	Tech. Phys.
Doc-Delivery-Number	108BP