中国物理B ›› 2009, Vol. 18 ›› Issue (9): 3952-3959.doi: 10.1088/1674-1056/18/9/055

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Experimental determination of interfacial energies for Ag2Al solid solution in the CuAl2--Ag2Al system

Cad1rl1 E1, Ke?lio?lu K2, Mara?li N2, Ocak Y3, Akbulut S4, Kaya H5   

  1. (1)Department of Physics, Faculty of Arts and Sciences, Nivgde University, Nivgde, Turkey; (2)Department of Physics, Faculty of Arts and Sciences, Erciyes University, Kayseri 38039, Turkey; (3)Department of Physics, Faculty of Arts and Sciences, Erciyes University, Kayseri 38039, Turkey ^b)Department of Physics, Institute of Science and Technology, Erciyes University, Kayseri 38039, Turkey; (4)Department of Physics, Institute of Science and Technology, Erciyes University, Kayseri 38039, Turkey; (5)Department of Science Education, Education Faculty, Erciyes University, Kayseri 38039, Turkey
  • 收稿日期:2009-01-28 修回日期:2009-02-27 出版日期:2009-09-20 发布日期:2009-09-20
  • 基金资助:
    This research was financially supported by the Scientific and Technical Research Council of Turkey (T\"UB\.ITAK (Grant No 105T481).

Experimental determination of interfacial energies for Ag2Al solid solution in the CuAl2--Ag2Al system

Ocak Ya)b), Akbulut Sb), Keslioglu Ka), Marasli Na)†, cCadirli Ec), and Kaya Hd)   

  1. a Department of Physics, Faculty of Arts and Sciences, Erciyes University, Kayseri 38039, Turkey; b Department of Physics, Institute of Science and Technology, Erciyes University, Kayseri 38039, Turkey; c Department of Physics, Faculty of Arts and Sciences, Ni?de University, Ni?de, Turkey; d Department of Science Education, Education Faculty, Erciyes University, Kayseri 38039, Turkey
  • Received:2009-01-28 Revised:2009-02-27 Online:2009-09-20 Published:2009-09-20
  • Supported by:
    This research was financially supported by the Scientific and Technical Research Council of Turkey (T\"UB\.ITAK (Grant No 105T481).

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摘要： The equilibrated grain boundary groove shapes of solid solution Ag2Al in equilibrium with an Al--Cu--Ag liquid were observed from a quenched sample with a radial heat flow apparatus. The Gibbs--Thomson coefficient, solid--liquid interfacial energy and grain boundary energy of the solid solution Ag2Al have been determined from the observed grain boundary groove shapes. The thermal conductivity of the solid phase and the thermal conductivity ratio of the liquid phase to solid phase for Ag2Al--28.3 at the %CuAl2 alloy at the melting temperature have also been measured with a radial heat flow apparatus and Bridgman type growth apparatus, separately.

Abstract: The equilibrated grain boundary groove shapes of solid solution Ag2Al in equilibrium with an Al--Cu--Ag liquid were observed from a quenched sample with a radial heat flow apparatus. The Gibbs--Thomson coefficient, solid--liquid interfacial energy and grain boundary energy of the solid solution Ag2Al have been determined from the observed grain boundary groove shapes. The thermal conductivity of the solid phase and the thermal conductivity ratio of the liquid phase to solid phase for Ag2Al--28.3 at the %CuAl2 alloy at the melting temperature have also been measured with a radial heat flow apparatus and Bridgman type growth apparatus, separately.

Key words: solid--liquid interfaces, metals and alloys, surface energy, thermal conductivity

中图分类号:  (Liquid-solid interfaces)

  • 68.08.-p
64.70.D- (Solid-liquid transitions) 66.70.-f (Nonelectronic thermal conduction and heat-pulse propagation in solids;thermal waves) 81.30.Bx (Phase diagrams of metals, alloys, and oxides)