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Crystallization of Silver‐Germanium Alloys under Microgravity I. Eutectic Crystallization in Hypoeutectic Alloy
Author(s) -
Vojtěch D.,
Holeček S.,
Barta C.,
Barta C.,
Görler G. P.,
Otto G.,
Wittmann K.
Publication year - 1997
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170320711
Subject(s) - eutectic system , crystallization , materials science , alloy , convection , metallurgy , thermodynamics , physics
The results of a study on eutectic crystallisation in the hypoeutectic alloy under different convection conditions are presented. Buoyancy driven convection was suppressed by processing the samples under microgravity conditions. The effect of convection level on the eutectic crystallisation is shown to be significant: In the absence of convection, the non‐equilibrium level of the process is enhanced. The characteristic dependence of the particle size on the distance from the surface of a sample, observed on the minor phase of the eutectic, is discussed.