| 摘要 |
A fired refractory ceramic shaped article has at least one microcrystalline, transition metal oxide spinel phase. The shaped article preferably has an overall composition range of 30 to 100 weight percent transition metal oxide spinel and 70 to 0 weight percent other inorganic oxides. Refractories of this invention, in the form of fibers, granules, mats, batting, and the like, are used as reinforcements in structures and composites, as active agents in thermal control systems, as catalysts, and as abrasive materials. |
