SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF OXIDE CURRENT-CONDUCTING MATERIALS ON BASIS OF CHROMITES OF RARE-EARTH ELEMENTS

There the purpose is to study systematically the influence of second modifying additive on the eltctrophysical propeties of chromites of rare-earth elements. The new materials on the basis of presented chromites have been synthesized; their structure, the main physicochemical properties have been studied, among them are the electric conduction in different atmospheres, the coefficient of thermal expansion, the thermal electromotive force. The high electric conduction both in the oxidizing and reducing atmospheres, the values of coefficients of thermal expansion, which are close with ones of solid electrolyte, allow to recommend the given materials as the electrode and communication materials for the high-temperature electrochemical devices. The introduction is planned. The application fields are the high-temperature electrochemical devicesAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio