Corrosion Tests of Domestic and Imported Chromium-Containing and Baddelyite–Corundum Refractories in Borosilicate Glass Melts

Abstract

TThe paper justifies great practical relevance of the problem of corrosion and erosion resistance of the refractories used as a structural element in direct electric heating furnaces intended for high-level waste vitrification. The list of the main promising materials is provided, as well as the algorithm of assessing their resistance to borosilicate melts during operation of electric furnaces. Corrosion tests of the refractory materials were carried out under static and dynamic conditions in low-melting borosilicate glass and in the melt of borosilicate glass containing simulated liquid high-level waste (HLW). The refractories that are most resistant to the glass melt under conditions of HLW solidification were identified. The results obtained will be useful for selecting the lining material for removable and small-size melters.