Abstract
The temperature-dependent viscosity and X-ray diffraction (XRD) patterns of a Cu65Sn35 melt were investigated at high temperatures. The viscosity of the melt changed discontinuously at about 1283 K (1010 °C). An XRD analysis of the Cu65Sn35 melt revealed no obvious changes in the correlation radius, whereas the coordination number increased abruptly at a similar temperature with that mentioned previously, i.e., 1283 K (1010 °C) during the cooling process. The results indicate a redistribution of atoms in the nearest environment. The structural transition at the higher temperature was attributed to a change of combination mode of nearest atoms in the short-range order cluster of the Cu65Sn35 melt.
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Acknowledgments
X.L. Tian is supported by the National Natural Science Foundation of China Grants 50971083 and 50571052. J.X. Hou acknowledges the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) (2010-0028287).
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Manuscript submitted May 30, 2011.
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Hou, J.X., Zhan, C.W., Tian, X.L. et al. Structure of Cu-Sn Melt at High Temperature. Metall Mater Trans A 43, 4023–4027 (2012). https://doi.org/10.1007/s11661-012-1236-z
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DOI: https://doi.org/10.1007/s11661-012-1236-z