Dendrite Growth Kinetics in Undercooled Melts of Intermetallic Compounds
نویسندگان
چکیده
منابع مشابه
Dendrite Growth Kinetics in Undercooled Melts of Intermetallic Compounds
Solidification needs an undercooling to drive the solidification front. If large undercoolings are achieved, metastable solid materials are solidified from the undercooled melt. Containerless processing provides the conditions to achieve large undercoolings since heterogeneous nucleation on container walls is completely avoided. In the present contribution both electromagnetic and electrostatic...
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A new experimental approach based on infrared thermography is proposed in this paper for studying crystal growth kinetics in undercooled melts. The crystallization of a thin sample of an undercooled melt at constant bulk temperature is induced by a small crystal seed and the growth of the solid phase is observed using infrared camera. The recorded thermal images allow determining the position o...
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If a liquid is undercooled below its equilibrium melting temperature an excess Gibbs free energy is created. This gives access to solidification of metastable solids under non-equilibrium conditions. In the present work, techniques of containerless processing are applied. Electromagnetic and electrostatic levitation enable to freely suspend a liquid drop of a few millimeters in diameter. Hetero...
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ژورنال
عنوان ژورنال: Crystals
سال: 2015
ISSN: 2073-4352
DOI: 10.3390/cryst5030355