Experimental determination of interfacial energy for solid Al in the Al-Sn-Mg eutectic system with Bridgman-type apparatus


Billur C. , SAATÇİ B.

PHYSICS LETTERS A, cilt.383, ss.2652-2657, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 383 Konu: 22
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.physleta.2019.05.033
  • Dergi Adı: PHYSICS LETTERS A
  • Sayfa Sayıları: ss.2652-2657

Özet

The equilibrated grain boundary groove shape of solid Al in equilibrium with Al-Sn-Mg eutectic liquid was observed by using a Bridgman type directional solidification apparatus. The ratio of the thermal conductivity of the equilibrated liquid to the thermal conductivity of solid Al has been obtained as 0.91. In addition, the average Gibbs-Thomson coefficient, (Gamma) over bar = (4.20 +/- 0.35) x 10(-8) Km, the solid-liquid interfacial energy, sigma(SL) = 180.68 +/- 23.48 mJ/m(2) and the grain boundary energy, sigma(GB) = 309.30 +/- 29.47 ml/m(2), in the Al/Al-Sn-Mg system have been calculated from the measured grain boundary shapes. (C) 2019 Elsevier B.V. All rights reserved.