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Undercooling and Solidification.

Herlach, D.M. and Willnecker, R. (1990) Undercooling and Solidification. DLR-Forschungsbericht. 90-02, 36 S.

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Abstract

Undercooling investigations on liquids are of fundamental interest in studying solidification phenomena and their consequences on microstructure development. Experimental techniques to achieve a deep undercooling at slow cooling rates are reviewed. The basic ideas of nucleation theory are presented. Theoretical concepts are discussed within the frame of the present state of the art of experimental investigations with special emphasis on homogeneous versus heterogeneous nucleation. A review is given on the experimental work on rapid solidification in undercooled liquids. The concomitant theoretical progress in this field is presented with emphasis on the steady state aspects of dendrite growth. The consequences of unconstrained solidification are evaluated with respect to the formation of metastable microstructures. The central position of undercooling experiments between various rapid solidification techniques is emphasized.

Document Type:Monograph (DLR-Forschungsbericht)
Additional Information: LIDO-Berichtsjahr=1990,
Title:Undercooling and Solidification.
Authors:
AuthorsInstitution or Email of Authors
Herlach, D.M.UNSPECIFIED
Willnecker, R.UNSPECIFIED
Date:1990
Number of Pages:36
Status:Published
Keywords:Undercooling, Nucleation, Dendrite Growth, Solidification
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Space
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Institute of Space Simulation
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 11:17

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