Abrasive particles, abrasive articles, and methods of making and using the same
Assignee3M Innovative Properties Company
InventorLarry D. Monroe
Life of this patent
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Abstract
Sintered alpha alumina-based abrasive particles comprising alpha alumina, Gd2O3, and ZnO, and methods of making the same. The abrasive particles can be incorporated, for example, into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and abrasive brushes.
Claims36
Sintered alpha alumina-based abrasive particle comprising alpha alumina, and, by weight, Gd2O3 in a range from 1 to 15 percent, and ZnO in a range from 0.2 to 8 percent, based on the total metal oxide content of the abrasive particle, and a Gd2O3 to ZnO molar ratio in a range from 2:1 to 1:5, wherein less than 0.05 volume percent of the alpha alumina present in the sintered alpha alumina-based abrasive particle was nucleated with a nucleating agent.
Dependencies are inferred from the claim text.