Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8152239 | Journal of Crystal Growth | 2013 | 9 Pages |
Abstract
The grain boundary groove shapes for solid succinonitrile solution (SCN-5 mole% NPG) in equilibrium with the succinonitrile (SCN)-neopentylglycol (NPG) eutectic liquid (SCN-9.55 mole% NPG) have been directly observed by using a horizontal linear temperature gradient apparatus at 317.1 K equilibrium temperature. From the observed grain boundary groove shapes, the Gibbs-Thomson coefficient (Ð) and solid-liquid interfacial energy (ÏSL) of solid SCN solution have been determined to be (5.43±0.50)Ã10â8 K m and (8.09±1.21)Ã10â3 J mâ2, respectively. The grain boundary energy of solid SCN solution has been determined to be (14.22±2.28)Ã10â3 J mâ2 from the observed grain boundary groove shapes. The thermal conductivity for SCN-9.55 mole% NPG eutectic solid phase and the thermal conductivity ratio of eutectic liquid phase to eutectic solid phase at the melting temperature have also been measured with a radial heat flow apparatus and Bridgman type growth apparatus, respectively.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Saadet B. KaradaÄ, Yemliha Altıntas, Esra Ãztürk, Sezen Aksöz, Kâzım KeÅlioÄlu, Necmettin MaraÅlı,