Solid-liquid interfacial energy of dichlorobenzene


BOYUK U., KESLIOGLU K., Marasli N.

JOURNAL OF PHYSICS-CONDENSED MATTER, vol.19, no.11, 2007 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 11
  • Publication Date: 2007
  • Doi Number: 10.1088/0953-8984/19/11/116202
  • Journal Name: JOURNAL OF PHYSICS-CONDENSED MATTER
  • Journal Indexes: Science Citation Index Expanded, Scopus

Abstract

Commercial- purity dichlorobenzene was purified using a columnar distillation system. The equilibrated grain boundary groove shapes for purified dichlorobenzene ( DCB) were directly observed by using a temperature gradient stage. From the observed grain boundary groove shapes, the Gibbs - Thomson coefficient and solid - liquid interfacial energy of purified DCB were determined to be ( 6.2 +/- 0.6) x 10(-8) K m and ( 29.3 +/- 4.4) x 10(-3) J m(-2) with the present numerical model and the Gibbs - Thomson equation, respectively. The grain boundary energy of the DCB phase was determined to be ( 54.1 +/- 9.2) x 10(-3) J m(-2) from the observed grain boundary grooves. The thermal conductivity ratio of the liquid phase to the solid phase was measured to be 0.94.