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Effect of liquid structural transition on the dissolution of solid copper in liquid eutectic tin–bismuth

Published online by Cambridge University Press:  05 April 2016

Guo-Hua Ding ,
Xuan Qi ,
Shu-Long Liu ,
Ming Li  and
Jing Hu
Guo-Hua Ding*
Affiliation:
School of Physics and Electronic Information, Huaibei Normal University, Huaibei City, Anhui 235000, China; and Collaborative Innovation Center of Advanced Functional Materials of Anhui Province, Huaibei City, Anhui 235000, China
Xuan Qi
Affiliation:
School of Physics and Electronic Information, Huaibei Normal University, Huaibei City, Anhui 235000, China; and Collaborative Innovation Center of Advanced Functional Materials of Anhui Province, Huaibei City, Anhui 235000, China
Shu-Long Liu
Affiliation:
School of Physics and Electronic Information, Huaibei Normal University, Huaibei City, Anhui 235000, China; and Collaborative Innovation Center of Advanced Functional Materials of Anhui Province, Huaibei City, Anhui 235000, China
Ming Li
Affiliation:
School of Physics and Electronic Information, Huaibei Normal University, Huaibei City, Anhui 235000, China; and Collaborative Innovation Center of Advanced Functional Materials of Anhui Province, Huaibei City, Anhui 235000, China
Jing Hu
Affiliation:
School of Physics and Electronic Information, Huaibei Normal University, Huaibei City, Anhui 235000, China; and Collaborative Innovation Center of Advanced Functional Materials of Anhui Province, Huaibei City, Anhui 235000, China
*
a)Address all correspondence to this author. e-mail: ghding@chnu.edu.cn
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Abstract

The tin–bismuth eutectic alloy possesses anomalous physicochemical properties that are dependent on temperature. This paper reports the interfacial reaction and growth behavior of the intermetallic compound (IMC) layer during the dissolution of solid copper in liquid eutectic tin–bismuth at 673–823 K under the influence of the structural transition of liquid eutectic tin–bismuth. The structural transition markedly affected the dissolution rate constant of solid copper and the growth rate of the IMCs. Correspondingly, the application of the liquid structural transition significantly decreased the activation energy of dissolution and increased the apparent activation energy for IMC growth. Moreover, two major roles of elemental Bi on the formation and growth of the IMCs were suggested.

Keywords

phase transformationliquidkinetics
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 8 , 28 April 2016 , pp. 1145 - 1152
Copyright
Copyright © Materials Research Society 2016 

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