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

AKBULUT S., OCAK Y., BOYUK U., EROL M., KESLIOGLU K., Marasli N.

JOURNAL OF PHYSICS-CONDENSED MATTER, cilt.18, sa.37, ss.8403-8412, 2006 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 37
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1088/0953-8984/18/37/001
  • Dergi Adı: JOURNAL OF PHYSICS-CONDENSED MATTER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.8403-8412
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

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.