Phase Diagram of the Pb-NiSb System and Properties of (NiSb)_(1-x)Pb_x Solid Solutions

摘要

The phase diagram of the Pb-NiSb system is presented. The system is pseudobinary, with a limited series of NiSb-based solid solutions: approx=1 mol % Pb at 300 K. In the temperature range approx=520-670 K, the system contains un unstable compound, Ni_3Pb_2Sb_3. At 1320 K, a monotectic transformation occurs (approx=15-71 mol % NiSb). Electrical and thermal conductivity measurements reveal an additional contribution to the lattice thermal resistivity of the (NiSb)_(1-x)Pb_x. solid solutions and show that electrons and phonons in these materials are scattered elastically.