English to French Tech/Engineering Patents (in a patent) Barrier layer for corrosion protection in electrochemical devices

The value of electrical conductivity is detected according to the powder method described in the Experimental section.

Measurement of electrical conductivity (powder method)
A 4-point powder conductivity unit provided by *****is employed for the method. The ceramic powder is filled into a measurement compartment and then the sample is compacted by a pressure piston. The conductivity is measured under different compaction pressures by the four point method, i.e. a current is passed through two electrodes and the difference in potential is measured between two other electrodes. The conductivity measurement results are reported for a pressure of MPa at room temperature (T ~ °C). The electrical conductivity of Elyst 048 is typically ~ 100 S/cm

the conductive ceramic material should have an electrical conductivity of >0.1 S/cm, preferably >1 S/cm and particularly preferred >10 S/cm in air atmosphere (as detected by the powder method).