Measurement of solid-liquid interfacial energy in succinonitrile-pyrene eutectic system

Böyük U., Keşlioǧlu K., Erol M., Maraşlı N.

Materials Letters, vol.59, no.23, pp.2953-2958, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 23
  • Publication Date: 2005
  • Doi Number: 10.1016/j.matlet.2005.03.071
  • Journal Name: Materials Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2953-2958
  • Keywords: crystal growth, grain boundaries, metal and alloys, interfacial energy
  • Istanbul Gelisim University Affiliated: No

Abstract

The equilibrated grain boundary groove shapes for solid succinonitrile (SCN)-liquid SCN Pyrene (PY) were directly observed. From the observed grain boundary groove shapes, the Gibbs-Thomson coefficient for solid SCN in equilibrium with the SCN-PY eutectic liquid has been determined to be (5.21 ± 0.26) × 10- 8 K m with numerical method. The solid-liquid interface energy for the solid SCN in equilibrium with the SCN-PY eutectic liquid has been obtained to be (9.58 ± 0.96) × 10- 3 J m- 2 from the Gibbs-Thomson equation. The grain boundary energy of SCN rich phase of the SCN-PY system has been determined to be (18.30 ± 2.38) × 10- 3 J m- 2 from the observed grain boundary groove shapes. The thermal conductivity ratio of the liquid phase to the solid phase for SCN-3 mol% PY alloy has also been measured. © 2005 Elsevier B.V. All rights reserved.