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Phase selection during solidification of undercooled bulk Bi95Sb5 melts

Published online by Cambridge University Press:  31 January 2011

Z. Zhou ,
J. Zhao  and
W. Wang
Z. Zhou
Affiliation:
Institute of Physics, Chinese Academy of Sciences, P.O. Box 603(34), Beijing 100080, People's Republic of China
J. Zhao
Affiliation:
Institute of Physics, Chinese Academy of Sciences, P.O. Box 603(34), Beijing 100080, People's Republic of China
W. Wang
Affiliation:
Institute of Physics, Chinese Academy of Sciences, P.O. Box 603(34), Beijing 100080, People's Republic of China
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Extract

Relationships between melt heat treatment and undercooling of alloy melts were clarified with Bi95Sb5 through four-factor, three-level orthogonal experiments. The results show that the cooling rate plays the most important role in the undercooling of Bi95Sb5 alloy melts. Undercooling as large as 121 K was obtained in the bulk Bi95Sb5 alloy melt. It is presently the highest undercooling of this alloy system. A metastable phase with tetragonal structure was found in the Bi95Sb5 alloy with undercooling of 121 K.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 1 , January 2000 , pp. 4 - 6
Copyright
Copyright © Materials Research Society 2000

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