Grain boundary wetting phase transition and analysis of the energy characteristics of grain boundaries in the Sn^sub s^-(Zn/Sn)^sub l^ system

Regularities of the interaction of tin grain boundaries (special Σ5 and general Σ17 001) and a Sn-Zn melt of equilibrium composition were studied. The grain boundary wetting phase transition temperature was determined; for Σ5 and Σ17, it is 216°C. More than 90% of the general grain boundaries were c...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2010-11, Vol.74 (11), p.1551
Main Authors: Murashov, V A, Straumal, B B, Protsenko, P V
Format: Article
Language:English
Subjects:
Alloys
Dihedral angle
Eutectic temperature
Grain boundaries
Phase transitions
Temperature
Tin
Transition temperature
Wetting
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Summary:Regularities of the interaction of tin grain boundaries (special Σ5 and general Σ17 001) and a Sn-Zn melt of equilibrium composition were studied. The grain boundary wetting phase transition temperature was determined; for Σ5 and Σ17, it is 216°C. More than 90% of the general grain boundaries were completely wetted by the melt over a range of temperatures, from the eutectic melting temperature to the tin melting temperature. It was shown that the anisotropy of interphase energy at the solid tin-Zn-Sn melt interface is 64 ± 10 mJ m-2 at 216°C. The energies of the Σ5 and Σ17 grain boundaries in the range of 201-216°C were obtained on the basis of the experimental dependence of the dihedral angle on temperature.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873810110134