Convective and Morphological Instabilities During Crystal Growth
Geoffrey B. McFadden, Sam R. Coriell, B T. Murray
During crystal growth or solidification of a binary alloy from a liquid phase, temperature and solute gradients are inherently present and can give rise to fluid flow in the melt. The interaction of fluid flow with the crystal-meltinterface plays an important role in determining the properties of the solidified material. Convection in the melt and interface instability may both produce solute inhomogeneities. The coupling between morphological instability and fluid flow can be complicated; interfacial instabilities depend on temperature and solute gradients that may be strongly influenced by the flow field. The flow field, in turn, may be influenced by the morphology of the interface. Examples of the effects of coupling on the stability of the system are discussed.
Proceedings of the 2002 NASA Microgravity Materials Science Conference
, Coriell, S.
and Murray, B.
Convective and Morphological Instabilities During Crystal Growth, Proceedings of the 2002 NASA Microgravity Materials Science Conference
(Accessed December 6, 2023)