| abstract |
MgAl2O4 spinel structure and / or MgO-MgAl2O4 eutectic structure magnesium aluminum oxide matrix, and inclusions consisting essentially of magnesium oxide, consisting essentially of oxide as weight percent Fusion particles having the following overall chemical composition expressed in the form of: the cumulative content of CaO and ZrO2 is less than 4000 ppm by weight: -5.0% And less than 19.9% of Al2O3, -Al2O3 and MgO in total are more than 95.0% of the weight of the particles described above. A ceramic product or material obtained by sintering the particles described above. [Selection figure] None |