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Necmettin Maraşlı - One of the best experts on this subject based on the ideXlab platform.
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thermal conductivity and interfacial energy of solid bi solution in the bi al zn eutectic system
Fluid Phase Equilibria, 2010Co-Authors: Sezen Aksoz, Y. Ocak, Necmettin Maraşlı, K. KeşlioğluAbstract:Abstract The equilibrated grain boundary groove shapes for solid Bi solution (Bi–6.1 at.%Zn–0.38 at.%Al) in equilibrium with the Bi–Al–Zn 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 solution have been determined from the observed grain boundary groove shapes. The variations of thermal conductivity with temperature for solid Bi solution (Bi–6.1 at.%Zn–0.38 at.%Al) has been measured up to five degree below the melting temperature by using radial heat flow technique. The ratio of thermal conductivity of equilibrated Bi–Al–Zn eutectic liquid phase to solid Bi solution (Bi–6.1 at.%Zn–0.38 at.%Al) phase has also been measured with a Bridgman type growth apparatus at the melting temperature.
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investigation of liquid composition effect on gibbs Thomson Coefficient and solid liquid interfacial energy in scn based binary alloys
Materials Characterization, 2008Co-Authors: U. Böyük, Necmettin MaraşlıAbstract:Abstract The commercial purity Succinonitrile (SCN) and para-Dibromobenzene (p-DBB) were distilled using a columnar distillation system. The grain boundary groove shapes for solid SCN in equilibrium with the SCN p-DBB eutectic liquid were directly observed. From the observed grain boundary groove shapes, the Gibbs–Thomson Coefficient and solid–liquid interfacial energy have been determined to be (5.47 ± 0.6) × 10− 8 K m and (8.12 ± 1.22) × 10− 3 J m− 2 with present numerical method and Gibbs–Thomson equation, respectively. The grain boundary energy of the SCN-rich phase of the SCN p-DBB eutectic system has been determined to be (15.19 ± 2.58) × 10− 3 J m− 2 from the observed grain boundary groove shapes. The thermal conductivity of the eutectic solid phase and the eutectic liquid phase at the eutectic melting temperature have also been measured to be 0.258 and 0.229 W/K m, respectively. If a comparison is made of the values of Γ, σSL and σgb for SCN based binary organic alloys obtained in the present work with previous work with the same method, it might be then concluded that the value of Γ depends on the equilibrium temperature and is independent of the equilibrated liquid composition, but the solid–liquid interfacial energy and grain boundary energy both depend on the equilibrium temperature and the equilibrated liquid composition.
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measurement of solid liquid interfacial energy in the in bi eutectic alloy at low melting temperature
Journal of Physics: Condensed Matter, 2007Co-Authors: Necmettin Maraşlı, Y. Ocak, U. Böyük, K. Keşlioğlu, Sami Akbulut, Hasan Kaya, Emin ÇadırlıAbstract:The Gibbs‐Thomson Coefficient and solid‐liquid interfacial energy of the solid In solution in equilibrium with In Bi eutectic liquid have been determined to be (1.46 ± 0.07) × 10 −7 Kma nd(40.4 ± 4.0) × 10 −3 Jm −2 by observing the equilibrated grain boundary groove shapes. The grain boundary energy of the solid In solution phase has been calculated to be (79.0 ± 8.7) × 10 −3 Jm −2 by considering force balance at the grain boundary grooves. The thermal conductivities of the In‐12.4 at.% Bi eutectic liquid phase and the solid In solution phase and their ratio at the eutectic melting temperature (72 ◦ C) have also been measured with radial heat flow apparatus and Bridgman-type growth apparatus.
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solid liquid interfacial energy of bismuth in the bi cd eutectic system
Scripta Materialia, 2004Co-Authors: Mustafa Erol, K. Keşlioğlu, Necmettin Maraşlı, Mustafa GündüzAbstract:Abstract The Gibbs–Thomson Coefficient, solid–liquid interface energy and grain boundary energy of solid bismuth in Bi–Cd liquid solution have been determined from the observed grain boundary groove shapes. The thermal conductivities of the solid and liquid phases at the eutectic composition and temperature have also been measured.
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solid liquid interfacial energy of the eutectoid β phase in the al zn eutectic system
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2004Co-Authors: K. Keşlioğlu, Necmettin MaraşlıAbstract:Abstract The equilibrated grain boundary groove shapes for the solid β phase in Al–Zn liquid solutions were observed on quenched samples. From the observed grain boundary groove shapes, the Gibbs–Thomson Coefficient for solid β (Al–84 wt.% Zn) in Al–Zn liquid solutions has been determined to be (3.41±0.14)×10 −8 Km with a numerical method. The solid–liquid interfacial energy between solid β and Al–Zn liquid solution has been obtained to be (106.94±9.62)×10 −3 J m −2 from the Gibbs–Thomson equation. The grain boundary energy for the same material has been calculated to be (204.72±22.52)×10 −3 J m −2 from the observed grain boundary groove shapes. The thermal conductivities of the solid and liquid phases for Al–95 wt.% Zn and Al–84 wt.% Zn systems have also been measured.
K. Keşlioğlu - One of the best experts on this subject based on the ideXlab platform.
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thermal conductivity and interfacial energy of solid bi solution in the bi al zn eutectic system
Fluid Phase Equilibria, 2010Co-Authors: Sezen Aksoz, Y. Ocak, Necmettin Maraşlı, K. KeşlioğluAbstract:Abstract The equilibrated grain boundary groove shapes for solid Bi solution (Bi–6.1 at.%Zn–0.38 at.%Al) in equilibrium with the Bi–Al–Zn 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 solution have been determined from the observed grain boundary groove shapes. The variations of thermal conductivity with temperature for solid Bi solution (Bi–6.1 at.%Zn–0.38 at.%Al) has been measured up to five degree below the melting temperature by using radial heat flow technique. The ratio of thermal conductivity of equilibrated Bi–Al–Zn eutectic liquid phase to solid Bi solution (Bi–6.1 at.%Zn–0.38 at.%Al) phase has also been measured with a Bridgman type growth apparatus at the melting temperature.
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measurement of solid liquid interfacial energy in the in bi eutectic alloy at low melting temperature
Journal of Physics: Condensed Matter, 2007Co-Authors: Necmettin Maraşlı, Y. Ocak, U. Böyük, K. Keşlioğlu, Sami Akbulut, Hasan Kaya, Emin ÇadırlıAbstract:The Gibbs‐Thomson Coefficient and solid‐liquid interfacial energy of the solid In solution in equilibrium with In Bi eutectic liquid have been determined to be (1.46 ± 0.07) × 10 −7 Kma nd(40.4 ± 4.0) × 10 −3 Jm −2 by observing the equilibrated grain boundary groove shapes. The grain boundary energy of the solid In solution phase has been calculated to be (79.0 ± 8.7) × 10 −3 Jm −2 by considering force balance at the grain boundary grooves. The thermal conductivities of the In‐12.4 at.% Bi eutectic liquid phase and the solid In solution phase and their ratio at the eutectic melting temperature (72 ◦ C) have also been measured with radial heat flow apparatus and Bridgman-type growth apparatus.
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solid liquid interfacial energy of bismuth in the bi cd eutectic system
Scripta Materialia, 2004Co-Authors: Mustafa Erol, K. Keşlioğlu, Necmettin Maraşlı, Mustafa GündüzAbstract:Abstract The Gibbs–Thomson Coefficient, solid–liquid interface energy and grain boundary energy of solid bismuth in Bi–Cd liquid solution have been determined from the observed grain boundary groove shapes. The thermal conductivities of the solid and liquid phases at the eutectic composition and temperature have also been measured.
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solid liquid interfacial energy of the eutectoid β phase in the al zn eutectic system
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2004Co-Authors: K. Keşlioğlu, Necmettin MaraşlıAbstract:Abstract The equilibrated grain boundary groove shapes for the solid β phase in Al–Zn liquid solutions were observed on quenched samples. From the observed grain boundary groove shapes, the Gibbs–Thomson Coefficient for solid β (Al–84 wt.% Zn) in Al–Zn liquid solutions has been determined to be (3.41±0.14)×10 −8 Km with a numerical method. The solid–liquid interfacial energy between solid β and Al–Zn liquid solution has been obtained to be (106.94±9.62)×10 −3 J m −2 from the Gibbs–Thomson equation. The grain boundary energy for the same material has been calculated to be (204.72±22.52)×10 −3 J m −2 from the observed grain boundary groove shapes. The thermal conductivities of the solid and liquid phases for Al–95 wt.% Zn and Al–84 wt.% Zn systems have also been measured.
Yi-hong Xiu - One of the best experts on this subject based on the ideXlab platform.
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throttling process of the kerr newman anti de sitter black holes in the extended phase space
Physical Review D, 2018Co-Authors: Ze-wei Zhao, Yi-hong XiuAbstract:The throttling process of the Kerr--Newman--anti-de Sitter (KN--AdS) black holes is systematically studied in the extended phase space. In this framework, the cosmological constant is interpreted as a varying thermodynamic pressure, and the black hole mass is identified with enthalpy. The throttling process is essentially an adiabatic and isenthalpic (i.e., constant-mass) process for the KN--AdS black holes. The Joule--Thomson Coefficient, inversion temperature, inversion curve, and isenthalpic curve are investigated in order, with both analytical and numerical methods. It is found that there are no maximum inversion temperatures, but only minimum ones that are around one half of the critical temperatures of the KN--AdS black holes. Two characteristic masses are also discussed to show the detailed features in the throttling behaviors of the KN--AdS black holes.
Ze-wei Zhao - One of the best experts on this subject based on the ideXlab platform.
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throttling process of the kerr newman anti de sitter black holes in the extended phase space
Physical Review D, 2018Co-Authors: Ze-wei Zhao, Yi-hong XiuAbstract:The throttling process of the Kerr--Newman--anti-de Sitter (KN--AdS) black holes is systematically studied in the extended phase space. In this framework, the cosmological constant is interpreted as a varying thermodynamic pressure, and the black hole mass is identified with enthalpy. The throttling process is essentially an adiabatic and isenthalpic (i.e., constant-mass) process for the KN--AdS black holes. The Joule--Thomson Coefficient, inversion temperature, inversion curve, and isenthalpic curve are investigated in order, with both analytical and numerical methods. It is found that there are no maximum inversion temperatures, but only minimum ones that are around one half of the critical temperatures of the KN--AdS black holes. Two characteristic masses are also discussed to show the detailed features in the throttling behaviors of the KN--AdS black holes.
Mustafa Gündüz - One of the best experts on this subject based on the ideXlab platform.
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solid liquid interfacial energy of bismuth in the bi cd eutectic system
Scripta Materialia, 2004Co-Authors: Mustafa Erol, K. Keşlioğlu, Necmettin Maraşlı, Mustafa GündüzAbstract:Abstract The Gibbs–Thomson Coefficient, solid–liquid interface energy and grain boundary energy of solid bismuth in Bi–Cd liquid solution have been determined from the observed grain boundary groove shapes. The thermal conductivities of the solid and liquid phases at the eutectic composition and temperature have also been measured.
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solid liquid interfacial energy of camphene
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 1999Co-Authors: B. Bayender, Necmettin Maraşlı, Emin Çadırlı, Mustafa GündüzAbstract:The Gibbs‐Thomson Coefficient and the solid‐liquid interfacial energy for camphene have been measured to be (8.5890.96) 10 8 K m and (4.4390.49)10 3 Jm 2 , respectively, by a direct method. The grain boundary energy of camphene has also been calculated to be (8.3690.92)10 3 Jm 2 from the observed grain boundary groove shapes. © 1999 Elsevier Science S.A.
