X-ray Reflectivity Studies of Atomic-Level Surface-Segregation in a Liquid Eutectic Alloy of AuSn
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Balagurusamy, Venkatachalapathy S. K.
Shpyrko, Oleg G.
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CitationBalagurusamy, Venkatachalapathy S. K., Reinhard Streitel, Oleg G. Shpyrko, Peter S. Pershan, Mati Meron, and Binhua Lin. 2007. X-ray reflectivity studies of atomic-level surface-segregation in a liquid eutectic alloy of AuSn. Physical Review B 75(104209).
AbstractX-ray reflectivity studies reveal atomic-level surface-segregation at the free surface of the eutectic Au71Sn29 liquid alloy. The surface-segregation extends up to three layers, in which the top layer is almost a pure monolayer of Sn, the second layer is almost a pure monolayer of Au and the third layer appears to be slightly enhanced in Au. Although the surface-segregation concentration profiles can be qualitatively accounted for by the theories of Defay-Prigogine and Strohl-King, they cannot satisfactorily account for the measured surface tension.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4419769
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