The corrosion resistance of molybdenum, molybdenum disilicide, and a SiC (p)/Al2O3
composite to molten E‐glass at 1550deg; C was studied. Mo showed no tendency to oxidize
as it was immersed in soda‐lime silicate glass in a parallel study. MoSi2 was corroded by
soluble molecular oxygen, leaving a Mo5Si3 interface behind. The SiC (p)/Al2O3 composite
was corroded at a more rapid rate wherein the SiC component was oxidized to form
amorphous silica and CO bubbles. Based on these results, the activity of soluble molecular …

The corrosion resistance of molybdenum, molybdenum disilicide, and a SiC (p)/Al2O3
composite to molten soda‐lime‐silicate glass was studied. The ASTM‐C621–84 corrosion
test method was modified because of inherent inaccuracies in the method and Si attack of
platinum crucibles. Specimen‐glass interfacial regions were characterized using XRD, SEM,
and EDS. After 48 h of exposure at 1565° C, the half‐down corrosion recessions of Mo,
MoSi2, and SiC (P)/Al2O3 were 0.11, 0.316, and 0.26 mm, respectively. Mo oxidized to form …