Convective and Morphological Stability during Directional Solidification of the Succinonitrile-Acetone System

Effects of convective mixing on the concentration homogeneity of the crystal has been demonstrated. Insitu observations of the solid liquid interface shape during crystal growth are presented which can be used to optimize the dopant distribution. Observations of the interface during growth are discussed varying the parameters in a controlled manner to minimize the thermosolutal effects. It has been observed that beyond a critical velocity for the particular dopant level, the interface shape changes. The change in the interface shape can be related to the fluid flow in the melt. Two different instability regions, namely convective and morphological are addressed. Experimentally observed result are compared with the existing convecto-diffusive theories.

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In Situ Observations of Interfacial Instability During Growth of Lead Bromide Crystals

Mani

Singh

Conrell³

et al. 1995

MRS Proc.

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Convective and Morphological Stability during Directional Solidification of the Succinonitrile-Acetone System

Cited by 1 publication

References 17 publications

In Situ Observations of Interfacial Instability During Growth of Lead Bromide Crystals

In Situ Observations of Interfacial Instability During Growth of Lead Bromide Crystals

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