Experimental determination of solid–liquid interfacial energy for succinonitrile solid solution in equilibrium with the succinonitrile–(D) camphor eutectic liquid
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The equilibrated grain boundary groove shapes for Succinonitrile (SCN) solid solution in equilibrium with the Succinonitrile (SCN)–D Camphor (DC) eutectic liquid were directly observed. From the observed grain boundary groove shapes, the Gibbs–Thomson coefficient and solid–liquid interface energy for SCN solid solution in equilibrium with the SCN–DC eutectic liquid has been determined to be (5.39 ± 0.27) × 10−8 K m and (7.88 ± 0.79) × 10−3 J m−2 with present numerical method and Gibbs–Thomson equation, respectively. The grain boundary energy of SCN rich phase of the SCN–DC eutectic system has been determined to be (14.95 ± 1.79) × 10−3 J m−2 from the observed grain boundary groove shapes. Thermal conductivity ratio of the liquid phase to the solid phase for SCN–0.16 mole % DC alloy has also been measured.
KeywordsEntropy Change Boundary Energy Thermal Conductivity Ratio Eutectic Liquid Pivalic Acid
This project was supported by the Erciyes University Scientific Research Project Unit under the contract no FBT-05-06. Authors would like to thank to Erciyes University Scientific Research Project Unit for their financial supports.