The Ho-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 HoPd and HoPd3, which have
a homogeneity range, were treated as the formulae Ho(Ho,Pd) and (Ho, Pd)Pd-
3, respectively. The other intermetallics were treated as stoichiometric co
mpounds. A set of self-consistent thermodynamic parameters of the Ho-Pd sys
tem was obtained.