... Electrode polarization measurements . ... Processing of ceramic materials, electrode systems and electrochemical cells . ... The technique is based on the measurements of a sample length variations with temperature or isothermal changes of the atmosphere, imploying the Linseis L75 vertical dilatometer. ... The gas system is equipped with a programmable gas-box, electrochemical oxygen pump and a sensor enabling to ajust and to continuously control the oxygen partial pressure in the range 10-21 - 1...