NATURE OF EUTECTIC CRYSTALLIZATION IN THE Fe_0,67Sb_0,33 – Pb SYSTEM AND THE POSSIBILITIES OF APPLICATION OF THE DETECTED HOMOGENEOUS PHASES IN SOLID-STATE ELECTRONICS

Abstract

From the phase diagram it is clear that the Fe0,67Sb0,33 – Pb system is quasi-binary and has a eutectic type of phase formation. The solid solution region with a boundary of 4 mol% Pb at 300K was discovered in the system. Based on the temperature dependence of the contact resistance of the eutectic Fe0,67Sb0,33 and the solid solution alloy (Fe0,67Sb0,33)0,99Pb0,01, it was established that the contact resistance of these materials varies within 810- 4÷ 510-4 omsm2, which makes them promising for use as switching layers in thermoelectric converters. It has been determined that the solid solution with the specified composition is also suitable for the manufacture of low-resistance thermistors.