Сracking resistance of molybdenum-rhenium alloy for armatures of thermoelectric converters (ТС)

Abstract

Industrial thermoelectric converters (TC) of the immersion type work in conditions of a large gradient of shock measured temperatures, mechanical, chemical and, in some cases, radiation influence of an aggressive environment. The structural element of the TC is the protective fitting, which has high requirements: a) ensuring the specified accuracy of temperature measurement in a certain interval with minimal inertia in relation to the heat flow; b) mechanical strength at thermal shocks; c) exclusion of direct contact of thermoelectrodes with the controlled environment (hermeticity and gas tightness); d) lack of influence of the armature material on the electrodes; e) sufficient operating resource; g) acceptable technological processing.