Solid-liquid interfacial energy of neopentylglycol

Ocak Y., Akbulut S., Keşlioǧlu K., Maraşlı N.

Journal of Colloid and Interface Science, cilt.320, sa.2, ss.555-562, 2008 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 320 Sayı: 2
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.jcis.2008.01.008
  • Dergi Adı: Journal of Colloid and Interface Science
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.555-562
  • Anahtar Kelimeler: organic materials, crystal growth, interfacial energy, grain boundary energy, thermal conductivity ratio
  • İstanbul Gelişim Üniversitesi Adresli: Hayır

Özet

The grain boundary groove shapes for equilibrated solid neopentylglycol (2,2-dimethyl-1,3-propanediol) (NPG) with its melt were directly observed by using a horizontal temperature gradient stage. From the observed grain boundary groove shapes, the Gibbs-Thomson coefficient (Γ), solid-liquid interfacial energy (σSL), and grain boundary energy (σgb) of NPG have been determined to be (7.4 ± 0.7) × 10-8 K m, (7.9 ± 1.2) × 10-3 J m-2, and (15.4 ± 2.5) × 10-3 J m-2, respectively. The ratio of thermal conductivity of equilibrated liquid phase to solid phase for the NPG has also been measured to be 1.07 at the melting temperature. © 2008 Elsevier Inc. All rights reserved.