REINFORCED CERAMIC REFRACTORY

摘要

The disclosed invention relates to a reinforced ceramic refractory made from an as-batched composition comprising alumina; a rare earth oxide; an oxide of a transition metal comprising Sc, Zn, Ga, Y, Cd, In, Sn, Tl or a mixture of two or more thereof; and chopped ceramic fibers containing nanofibrils; the refractory exhibiting a modulus of rupture measured at 2500°F (1371°C) of at least about 2500 psi, as determined by the test method ASTM C583. A process for making the reinforced ceramic refractory is disclosed.