Thermodynamic modeling of the Dy-Pd system

The Dy-Pd system was critically assessed by means of the CALPHAD technique. The solution phases (liquid, bcc, fee and hcp) were modeled with the Redli ch-Kister equation. The intermetallic compounds DyPd and DyPd3, which have a homogeneity range, were treated as the phases DyM and MPd3, respectively, by a two-sublattice model with Dy in DyM and Pd in MPd3 on one sublattice and M on the other, where M is used as the abbreviation for a mixture of Dy and Pd. The other phases were treated as stoichiometric compounds. A set o f self-consistent thermodynamic parameters of the Dy-Pd system was obtained . (C) 2000 Elsevier Science S.A. All rights reserved.