Solid-liquid interfacial energy of dichlorobenzene

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Atıf İçin Kopyala

BOYUK U., KESLIOGLU K., Marasli N.

JOURNAL OF PHYSICS-CONDENSED MATTER, cilt.19, sa.11, 2007 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 19 Sayı: 11
• Basım Tarihi: 2007
• Doi Numarası: 10.1088/0953-8984/19/11/116202
• Dergi Adı: JOURNAL OF PHYSICS-CONDENSED MATTER
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

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.