Determination of solid–liquid interfacial energy for a solid Sn in equilibrium with a Sn–Ag–Zn eutectic liquid

The equilibrated grain boundary groove shapes for a solid Sn in equilibrium with a Sn–Ag–Zn eutectic liquid were observed in a linear temperature gradient by using a Bridgman type directional solidification apparatus. The Gibbs–Thomson coefficient, solid–liquid interfacial energy and grain boundary energy for a solid Sn in equilibrium with a Sn–Ag–Zn eutectic liquid were determined to be (8.21 ± 0.7) × 10−8 Km, (116.2 ± 15.1) × 10−3 J m−2 and (228.1 ± 34.2) × 10−3 J m−2, respectively from observed grain boundary groove shapes. A comparison of present results with the previous experimental and theoretical results for similar solids in equilibrium with the different liquid was also made.

► The equilibrated grain boundary groove shapes for a solid Sn in equilibrium with a Sn–Ag–Zn eutectic liquid were observed. ► The Gibbs–Thomson coefficient, was determined to be (8.21 ± 0.7) × 10−8 Km. ► Solid–liquid interfacial energy and grain boundary energy for a solid Sn in equilibrium with a Sn–Ag–Zn eutectic liquid were determined to (116.2 ± 15.1) × 10−3 J m−2 and (228.1 ± 34.2) × 10−3 J m−2, respectively.