| 摘要 |
A refractory object can include a beta alumina. In an embodiment, the refractory object is capable of being used in a glass fusion process. In another embodiment, the refractory object can have a total Al2O3 content of at least 10% by weight. Additionally, a Mg—Al oxide may not form along a surface of the refractory object when the surface is exposed to a molten glass including an Al—Si—Mg oxide. In a particular embodiment, a refractory object can be in the form of a glass overflow forming block used to form a glass object that includes an Al—Si—Mg oxide. When forming the glass object, the glass material contacts the beta alumina, and during the flowing of the glass material, a Mg—Al oxide does not form along the beta alumina at the surface. |
