Abstract
The thermoelectric power and the magnetic susceptibility have been measured on the liquid silver alloys of Ag–In, Ag–Sn, Ag–Pb, Ag–Bi and Ag–Sb systems over a wide temperature ranges of about 500 to 1000°C.
The magnetic susceptibility curves at about 1000°C plotted against the alloy compositions are almost linear for liquid Ag–Pb and Ag–Bi alloys, but show a diamagnetic increase in the composition range of 85% to 70% Ag in other silver alloys.
The thermoelectric power varies in a relatively simple way with the alloy compositions for the liquid alloys except for the liquid Ag–Sb alloys which behave in a remarkably anomalous way with a sharp minimum at about 10% Sb and a broad maximum at about 35% Sb.
Calculations based on the assumption of random mixing of constituent atoms in these liquid alloys are performed for the magnetic susceptibility and the thermoelectric power. It is shown that the calculated results are in good agreement with the measurements for the liquid Ag–Pb and Ag–Bi alloys but are different from the experimental results for the other silver alloys. These facts suggest that contributions to these physical properties by the formation of “pseudomolecules” cannot be neglected in the liquid silver alloys except in liquid Ag–Pb and Ag–Bi alloys.
