Fused cast refractory material based on aluminium oxide, zirconium dioxide and silicon dioxide, and use of such a material

摘要

The invention relates to a fused cast refractory material based on aluminium oxide, zirconium dioxide and silicon dioxide, and a use of such a material. The material contains a vitreous phase, the molar ratio between Al 2 O 3 and Na 2 O in the vitreous phase is 0.8 to 1.6.