Patent ID: 7384438

Claim:
A plurality of abrasive particles having a specified nominal grade, said plurality of abrasive particle having a particle size distribution ranging from fine to coarse, wherein at least a portion of said abrasive particles is a plurality of fused, crystalline abrasive particles, said fused abrasive particles comprising at least 20 percent by volume, based on the total metal oxide volume of the respective particle, eutectic material, wherein said eutectic material comprises eutectic of at least: (a) crystalline ZrO 2 and (b) at least two of: (i) crystalline Al 2 O 3 , (ii) first crystalline complex Al 2 O 3 .Y 2 O 3 , or (iii) second, different, crystalline complex Al 2 O 3 .Y 2 O 3 .