Scopus İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.12573/395
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Article Citation - WoS: 4Citation - Scopus: 4Thermal Conductivity and Interfacial Energy of Solid Bi in the Bi-Ag Eutectic System(Springer, 2015-05-15) Altintas, Yemliha; Ozturk, Esra; Aksoz, Sezen; Keslioglu, Kazim; Marasli, Necmettin; Maraşlı, Necmettin; Keşlioğlu, Kâzım; Altıntas, Yemliha; Keşlioğlu, KazımThe equilibrated grain boundary groove shapes for solid Bi (Bi-2.87 at.%Ag) in equilibrium with Bi-Ag eutectic liquid have been observed from quenched sample with a radial heat flow apparatus. The Gibbs-Thomson coefficient, solid-liquid interfacial energy and grain boundary energy of solid Bi have been determined from the observed grain boundary groove shapes. The variation of thermal conductivity with temperature for eutectic solid phase (Bi-4.7 at.%Ag) has been measured. The ratio of thermal conductivity of equilibrated eutectic liquid phase to eutectic solid phase has also been measured with a Bridgman-type growth apparatus at the melting temperature. The Gibbs-Thomson coefficient, solid-liquid interfacial energy and grain boundary energy of solid Bi in equilibrium with Bi-Ag eutectic liquid were determined to be (9.2 +/- A 0.6) x 10(-8) K m, (52.7 +/- A 6.3) x 10(-3) J m(-2) and (102.4 +/- A 13.3) x 10(-3) J m(-2), respectively, from observed grain boundary groove shapes.Article Citation - WoS: 5Citation - Scopus: 5Solid-Liquid Interfacial Energy of Solid Succinonitrile in Equilibrium With Succinonitrile-1,4 Eutectic Liquid(Springer, 2015-01-28) Ersoy, S. B.; Altintas, Y.; Karadag, S. B.; Aksoz, S.; Keslioglu, K.; Marasli, N.; Karadağ, S.B.; Keşlioğlu, K.; Keşlioğlu, Kazım; Karadaʇ, S.B.The grain boundary groove shapes for equilibrated solid SCN in equilibrium with the SCN-0.5 mol% DIB eutectic liquid have been directly observed by using a horizontal linear temperature gradient apparatus. The ratio of thermal conductivity of equilibrated liquid to thermal conductivity of solid SCN has also been determined to be 0.90. From the observed grain boundary groove shapes and measured thermal conductivity ratio, the Gibbs-Thomson coefficient (D") of solid SCN has been determined to be (5.46 +/- A 0.55) x 10(-8) K m. The solid-liquid interfacial energy (sigma (SL)) and the grain boundary energy of solid SCN have also been determined to be (8.25 +/- A 1.24) x 10(-3) J m(-2) and (15.84 +/- A 2.53) x 10(-3) J m(-2), respectively.
