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)
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
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.
Received: 28 January 2009
Revised: 27 February 2009
Accepted manuscript online:
Fund: This
research was financially supported by the Scientific and Technical
Research Council of Turkey (T\"UB\.ITAK (Grant No
105T481).
Cite this article:
Ocak Y, Akbulut S, Keslioglu K, Marasli N, cCadirli E, and Kaya H Experimental determination of interfacial energies for Ag2Al solid solution in the CuAl2--Ag2Al system 2009 Chin. Phys. B 18 3952
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