| abstract |
The disclosed invention relates to a refractory made from an as-batched composition comprising alumina, a rare earth oxide, and optionally an oxide of a transition metal comprising Sc, Zn, Ga, Y, Cd, In, Sn, Tl or a mixture of two or more thereof, the refractory being characterized by the absence of SiO2 or a concentration of SiO2 of no more than about 0.2% by weight. |