Porous abrasive article having ceramic abrasive composites, methods of making, and methods of use

摘要

An abrasive article made from a plurality of abrasive composites bonded to form a three dimensional abrasive article. Each abrasive composite includes a plurality of primary abrasive particles bonded together by a first binder matrix to form a shaped or irregular abrasive composite. Present within the abrasive composite is an intra-composite porosity between and among the primary abrasive particles. Inter-composite porosity is present within the abrasive article between and among the abrasive composites. The abrasive article is used to grind glass and other workpiece surfaces to a mirror finish.