Determination of Interfacial Energies for Solid Al Solution in Equilibrium with Al-Cu-Ag Liquid

Keslioglu K., Ocak Y., Aksoz S., Marasli N., CADIRLI E., KAYA H.

METALS AND MATERIALS INTERNATIONAL, vol.16, no.1, pp.51-59, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 16 Issue: 1
  • Publication Date: 2010
  • Doi Number: 10.1007/s12540-010-0051-6
  • Journal Name: METALS AND MATERIALS INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.51-59
  • Yıldız Technical University Affiliated: No

Abstract

The equilibrated grain boundary groove shapes of a solid Al solution in equilibrium with Al-Cu-Ag liquid were observed from a quenched sample using a radial heat flow apparatus. The Gibbs-Thomson coefficient, solid-liquid interfacial energy, and grain boundary energy of the solid Al solution were determined from the observed grain boundary groove shapes. The thermal conductivity of the solid phase for Al-16.42 at.% Ag-4.97 at.% Cu and Al-16.57 at.% Ag-11.87 at.% Cu alloys and the thermal conductivity ratio of the liquid phase to the solid phase for Al-16.57 at.% Ag-11.87 at.% Cu alloy at the melting temperature were also measured with a radial heat flow apparatus and a Bridgman-type growth apparatus, respectively.