Thermodynamic criterion of separated eutectic phenomena

About 26 kinds of simple and complex binary eutectics were frozen directionally under the condition of electromagnetic stirring. It was found that anomalous eutectics including most metals/non-metals and some metal/intermetallic eutectics, can be separated on macroscopic scale by flow caused by elec...

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Veröffentlicht in:	Journal of materials science 1998-05, Vol.33 (9), p.2313-2317
Hauptverfasser:	Zhiqiang, Cao, Junze, Jin, Dong, Lin, Xianshu, Zheng, Cho, Youngwhan, Oh, Youngjoo
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Cross-disciplinary physics: materials science rheology Electromagnetic stirring Entropy of solution Eutectics Exact sciences and technology Materials science Metals. Metallurgy Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Solidification
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Zusammenfassung:	About 26 kinds of simple and complex binary eutectics were frozen directionally under the condition of electromagnetic stirring. It was found that anomalous eutectics including most metals/non-metals and some metal/intermetallic eutectics, can be separated on macroscopic scale by flow caused by electromagnetic stirring. Moreover, the eutectics in which one of their component phases possess an entropy of solution over 23 J mol-1K-1 showed notable separation. In addition, process factors also affect the formation of a separated eutectic. © 1998 Chapman & Hall
ISSN:	0022-2461 1573-4803
DOI:	10.1023/a:1004339421223