Structure and electrophysical properties of liquid Pb83Mg17 and Pb83Li17 eutectics

Short range order structure of Pb₈₃Mg₁₇ and Pb₈₃Li₁₇ liquid alloys has been studied by means of X-ray diffraction method. The structure factors and pair correlation functions are analyzed. Experimental structure data were used to calculate the partial structure characteristics by means of Reverse Monte Carlo method. It is shown also that Li₄Pb significantly affects the structure of Pb₈₃Li₁₇ eutectic melt. For Pb₈₃Mg₁₇ eutectic melt the electrical resistivity and thermo-e.m.f. were measured in the temperature range of 550-1300 K. Their analysis confirms the diffraction data concluding the heterocoordinated atomic distribution Pb and Mg atoms.