Isothermal sections of Au-Pd-Sn system at 500 and 800°C

Alloys of a Au-Pd-Sn system containing up to 35 at % Sn were investigated using a complex of physico-chemical methods of analysis. Partial isothermal sections were drawn at 500 and 800°C. The ternary phase having a tetragonal structure has been established. The solid solubility of gold in Pd-Sn phases goes up with the temperature increase. In all these phases gold seems to replace not only palladium, but also tin.