Splat-cooled alloys in the Ag-Sn-Cu system.

Strength, dimensional change during setting, and corrosion resistance have been measured for amalgams prepared from splat-cooled alloys of different compositions in the Ag-Sn-Cu system. The amalgam with optimum values of these properties was made from the alloy containing 60 at. % Ag, 25 at. % Sn, and 15 at.% Cu. Tensile strengths for amalgams from this alloy were about 8000 psi, dimensional change during setting near zero, and corrosion resistance was good. X-Ray diffraction showed that the gamma1 and gamma2 phases had essentially disappeared after about 24 hr. At the latter time Cu6Sn5 was present.