Solidification with a quasiequilibrium mushy region: exact analytical solution of nonlinear model / Alexandrov DV // JOURNAL OF CRYSTAL GROWTH. - 2001. - V. 222, l. 4. - P. 816-821.

ISSN/EISSN:

0022-0248 / нет данных

Type:

Article

Abstract:

A set of nonlinear equations describing solidification of a binary melt in the presence of a quasiequilibrium mushy region is solved analytically in the case of an arbitrary dependence of effective coefficients of heat and mass transfer. Concentration. temperature distributions and a bulk fraction of the solid phase in a mushy region are found as functions of a spatial coordinate for unidirectional quasistationary regime of solidification. An algebraic equation for the bulk fraction of the solid phase at the solid-mushy region interface is also deduced. The mushy region width is found as a function of given physical and operating parameters of solidification. On the basis of obtained solutions the regime of solidification with the quasiequilibrium mushy zone is replaced by equivalent discontinuity surface (frontal) regime with new boundary conditions. (C) 2001 Elsevier Science B.V. All rights reserved.

Author keywords:

solidification; mushy region; solid-liquid transitions BINARY

DOI:

10.1016/S0022-0248(00)00960-X

Web of Science ID:

ISI:000166881800021

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	FEB
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	BINARY
Research-Areas	Crystallography; Materials Science; Physics
Web-of-Science-Categories	Crystallography; Materials Science, Multidisciplinary; Physics, Applied
ResearcherID-Numbers	Alexandrov, Dmitri/D-2516-2016
ORCID-Numbers	Alexandrov, Dmitri/0000-0002-6628-745X
Number-of-Cited-References	14
Journal-ISO	J. Cryst. Growth
Doc-Delivery-Number	400PY