ABRASIVE ARTICLE AND METHOD OF MAKING SAME
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United States of America Patent
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Jun 25, 2014
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Jun 25, 2013
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An abrasive article may include an abrasive body having a grinding layer, where the grinding layer may include a bond and abrasive particles contained within the bond. The abrasive body also may include a volumetric ratio GLVb/GLVap of at least about 0.4, where GLVb is a volume percent of bond for a total volume of the grinding layer and GLVap is a volume percent of abrasive particles for a total volume of the grinding layer. The abrasive particles may include seeded sol-gel ceramic and may have an average particle size of at least about 600 microns. In addition, the abrasive particles may include a coupling agent that may include an organic material with a silane functional group. Prior to formation of the abrasive article, the abrasive particles may be coated by the coupling agent at a ratio ACOA/AAB of at least about 0.1, where CCOA is the amount of coupling agent in grams in a pre-formation mixture and AAB is the amount of abrasive particles in pounds (lbs) in the pre-formation mixture.
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