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US 9,803,119 B2Granted
Abrasive article including shaped abrasive particles
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorsKristin Breder, Jennifer H. Czerepinski, Flavien Fremy, David Louapre, Samuel S. Marlin, Yves Boussant-Roux, Sujatha Iyengar
Life of this patent
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Abstract
A shaped abrasive particle including a body having a first major surface, a second major surface, and a side surface extending between the first major surface and the second major surface, wherein the body includes a sharpness-shape-strength factor (3SF) within a range between about 0.7 and about 1.7 and a Shape Index within a range between at least about 0.51 and not greater than about 0.99.
Claims18
A shaped abrasive particle comprising:
- a body comprising a first major surface, a second major surface, a first side surface extending between the first major surface and the second major surface, and a second side surface extending between the first major surface and the second major surface, wherein the first side surface comprises a first side section and a first oblique section, wherein the first side section and the first oblique section are joined at a first oblique corner, wherein the first oblique corner has a first oblique corner angle, wherein the first oblique corner angle has a value of at least 92 degrees and not greater than 176 degrees, wherein the first side surface and the second side surface come together at a first external corner, wherein the first external corner has at first external corner angle, wherein the first external corner angle has a value less than the value of the first oblique corner angle, and wherein the body comprises alumina, and further wherein the body comprises a sharpness-shape-strength factor (3SF) of at least 1.3, a strength of at least 100 MPa, a Shape Index of at least 0.51 and not greater than 0.80, and wherein the body comprises a tip sharpness of at least 2 microns and not greater than 50 microns.
Dependencies are inferred from the claim text.