Chromium oxide green with corundum crystal structure has such characteristics as high thermal stability, high painted capacity, chemical corrosion-resisting capacity, etc.

Aluminum content of 78% spinel content than the aluminum content of 65% and 90% aluminum spinel and corundum crystal degree of integration between the good, the sample with high intensity.

The results indicated that the introduction of crystal seed was effective to promote the sintering of new ceramic corundum abrasive and decrease its crystal size;