A thermodynamic evaluation of the Sn-Zn and In-Zn systems has been mad
e by using thermodynamic models for the Gibbs energy of the individual
phases. An optimized set of thermodynamic parameters was obtained tak
ing into consideration relevant experimental information. The thermody
namic parameters of the Sn-Zn and In-Zn systems and comparisons betwee
n calculation and experimental data are presented.