US 11,718,774 B2
Abrasive particles and methods of forming same
Ralph Bauer, Niagara Falls (CA); Eric Moch, Allston, MA (US); Jennifer H. Czerepinski, Framingham, MA (US); Yves Boussant-Roux, Avignon (FR); and Flavien Fremy, Brookline, MA (US)
Assigned to SAINT-GOBAIN CERAMICS & PLASTICS, INC., Worcester, MA (US)
Filed by SAINT-GOBAIN CERAMICS & PLASTICS, INC., Worcester, MA (US)
Filed on May 10, 2017, as Appl. No. 15/591,964.
Claims priority of provisional application 62/334,296, filed on May 10, 2016.
Prior Publication US 2017/0335156 A1, Nov. 23, 2017
Int. Cl. C09K 3/14 (2006.01); C01F 7/441 (2022.01); C04B 35/111 (2006.01); C04B 35/626 (2006.01); B01J 2/26 (2006.01)
CPC C09K 3/1409 (2013.01) [B01J 2/26 (2013.01); C01F 7/441 (2013.01); C04B 35/1115 (2013.01); C04B 35/6261 (2013.01); C09K 3/1436 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3218 (2013.01); C04B 2235/5292 (2013.01); C04B 2235/5296 (2013.01); C04B 2235/606 (2013.01); C04B 2235/6021 (2013.01); C04B 2235/6583 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for making abrasive particles comprising:
forming a mixture into a body wherein the body is in the form of a layer, wherein the mixture comprises a ceramic;
deforming at least a portion of the body to create at least one crack initiation point, wherein deforming includes contacting a form to a surface of the body;
drying the body under controlled cracking conditions to fracture the body into a plurality of precursor abrasive particles, wherein controlled cracking conditions include controlled crack propagation from the at least one crack initiation point; and
forming the precursor abrasive particles into abrasive particles, each of the abrasive particles comprising a body having a first major surface, a second major surface, and a side surface extending between the first and second major surfaces, and wherein the side surface comprises an irregular two-dimensional shape as viewed in the plane of the first or second major surfaces.