A nonlinear instabillty analysis of crystallization processes with a two-phase zone / Alexandrov DV // . - 2004. - V. 20-21, l. . - P. 468-475.

ISSN/EISSN:

1422-6375 / нет данных

Type:

Proceedings Paper

Abstract:

This study is based on the exact analytical solutions of the nonlinear model for solidification of binary melts with a mushy layer (these solutions are obtained in previous studies). The linear analysis of dynamic instability shown existence of oscillatory instability is also taken into account. A set of nonlinear evolutionary equations describing a behavior of perturbations is deduced. The weakly nonlinear approximation under consideration enables us to find two cumbersome equations for frequency and supercriticality of bifurcations. The distance between neighboring layers of impurity distribution in the solid phase is found. Theoretical predictions are in a good agreement with experimental data.

Author keywords:

crystallization; phase transitions; instabilities; two-phase zone DILUTE BINARY ALLOY; RAPID SOLIDIFICATION; STABILITY; INTERFACE; MODEL

DOI:

нет данных

Web of Science ID:

ISI:000223641200072

Соавторы в МНС:

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Другие поля

Поле	Значение
Editor	Kiminami, CS and Bolfarini, C and BottaF, WJ
Booktitle	ISMANAM 2003: METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS
Series	JOURNAL OF METASTABLE AND NANOCRYSTALLINE MATERIALS SERIES
Note	10th International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 2003), Foz do Iguacu, BRAZIL, AUG 24-28, 2003
Publisher	TRANS TECH PUBLICATIONS LTD
Address	LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
Language	English
ISBN	0-87849-944-X
Keywords-Plus	DILUTE BINARY ALLOY; RAPID SOLIDIFICATION; STABILITY; INTERFACE; MODEL
Research-Areas	Materials Science; Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Materials Science, Ceramics; Materials Science, Multidisciplinary; Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Alexandrov, Dmitri/D-2516-2016
ORCID-Numbers	Alexandrov, Dmitri/0000-0002-6628-745X
Number-of-Cited-References	25
Doc-Delivery-Number	BAU76