THE ELECTROCHEMICAL CORROSION OF FRITTED ALUMINA IN A BATH OF SODIUM METASILICATE

>The corrosion of fritted alumina in a bath of sodium metasilicate at 1200 deg C is sharply increased by a positive polarization but is not affected by a negative polarization. This dissymmetry is considered in making a hypothesis on the mede of conduction of the alumina. The conduction is electroric in the first case and ionic in the second. (trauth)