Patent ID: 6669749
Filing Date: 2003-12-30
Classification: B24D,C03C,C04B,C09K

Abstract:
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 colonies, said colonies comprising a three-dimensional, interpenetrating network of first and second crystalline metal oxide phases, said first phase comprising at least one of crystalline Al2O3 or a first, crystalline complex Al2O3.metal oxide and said second phase comprising a second, different crystalline complex Al2O3.metal oxide.