Solid–liquid interfacial energy of neopentylglycol

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• 作者：Y. Ocak ; S. Akbulut ; K. Keş ; lioğ ; lu ; N. Maraş ; lı
• 关键词：Organic materials ; Crystal growth ; Interfacial energy ; Grain boundary energy ; Thermal conductivity ratio
• 刊名：Journal of Colloid and Interface Science
• 出版年：2008
• 出版时间：15 April 2008
• 年：2008
• 卷：320
• 期：2
• 页码：555-562
• 全文大小：797 K

文摘

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 (σ_SL), and grain boundary energy (σ_gb) of NPG have been determined to be , , and 52c40fdb25281abd966e"">, 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.