Measurement of solid-liquid interfacial energy in the pyrene succinonitrile monotectic system

Akbulut S., Ocak Y. , Boyuk U., Erol M., Keslioglu K., Maraşlı N.

JOURNAL OF PHYSICS-CONDENSED MATTER, vol.18, no.37, pp.8403-8412, 2006 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 37
  • Publication Date: 2006
  • Doi Number: 10.1088/0953-8984/18/37/001
  • Page Numbers: pp.8403-8412


The equilibrated grain boundary groove shapes for solid pyrene (PY) in equilibrium with the PY succinonitrile (SCN) monotectic liquid were directly observed. From the observed grain boundary groove shapes, the Gibbs Thomson coefficient and solid-liquid interfacial energy for solid PY in equilibrium with the PY SCN monotectic liquid have been determined to be (8.72 +/- 0.87) x 10(-8) Km and (21.9 +/- 3.28) x 10(-3) J m(-2) with the present numerical method and Gibbs-Thomson equation, respectively. The grain boundary energy of the solid PY phase has been determined to be (42.84 +/- 7.28) x 10(-3) J m(-2) from the observed grain boundary groove shapes. Thermal conductivities of solid and liquid phases for PY-2.5 mol% SCN alloy and pure PY have also been measured.