Decomposition of Solutions in Front of the Interface Induced by Directional Crystallization

A. Guskov, L. Nekrasova

A. N. Sysin Research Institute of Human Ecology and of Environ- ment Hygiene RAMS, Moscow, Russia.
Institute of Solid State Physics of RAS, Chernogolovka, Russia.

DOI: 10.4236/jcpt.2013.34026                

Abstract

Here we show the results of experimental observation of decomposition of the solution components into the neighboring cells. The liquid solution under crystallization first gets into the unstable state and then decomposes. The decomposition result is fixed in the solid phase as inhomogeneous component distribution. Our experimental results enable to argue that the eutectic pattern forms due to interface instability and spinodal decomposition of non-equilibrium solution forming in front of the interface.

Keywords

Spinodal Decomposition; Directional Crystallization; Eutectic; Phase Transformation; Metastable Phases

Conflicts of Interest

The authors declare no conflicts of interest.

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