The experimental determination of thermophysical properties of intermetallic CuAl2 phase in equilibrium with (Al plus Cu plus Si) liquid

被引:3
作者
Altintas, Yemliha [1 ]
Aksoz, Sezen [2 ]
Keslioglu, Kazim [3 ]
Marasli, Necmettin [4 ]
机构
[1] Abdullah Gul Univ, Fac Engn, Dept Mat Sci & Nanotechnol, TR-38039 Kayseri, Turkey
[2] Nevsehir Haci Bektas Veli Univ, Fac Arts & Sci, Dept Phys, TR-50300 Nevsehir, Turkey
[3] Erciyes Univ, Fac Sci, Dept Phys, TR-38039 Kayseri, Turkey
[4] Yildiz Tech Univ, Fac Chem & Met Engn, Dept Met & Mat Engn, TR-34210 Davutpasa, Turkey
关键词
Aluminium alloy; Intermetallic; Thermal properties; Crystal growth; Interface; Microstructure; INTERFACIAL ENERGY; SOLID SUCCINONITRILE; SURFACE ENERGIES; EUTECTIC LIQUID; TERNARY ALLOYS; SYSTEM; BINARY; SN;
D O I
10.1016/j.jct.2016.01.025
中图分类号
O414.1 [热力学];
学科分类号
摘要
The equilibrated grain boundary groove shapes of solid CuAl2 in equilibrium with (Al + Cu + Si) eutectic liquid were observed from a quenched sample by using a radial heat flow apparatus. The Gibbs-Thomson coefficient, (solid + liquid) interfacial energy and grain boundary energy of the solid CuAl2 were determined from these observed shapes. The thermal conductivity of the eutectic solid and the thermal conductivity ratio of eutectic liquid to the eutectic solid in the (Al + 26.82 wt.% Cu + 5.27 wt.% Si) eutectic alloy at its eutectic melting temperature were also measured with a radial heat flow apparatus and a Bridgman-type growth apparatus, respectively. The three phases of (Al + Cu + Si) alloy have detected as Al solution, Si and theta (CuAl2) phases with EDX composition analysis and the microstructure of these phases were photographed by SEM. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:235 / 241
页数:7
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