3m Innovative Properties Company

Grant E Greske

Larry D Monroe

Abrasive particles include: 0.50 to 5.00 weight percent of seed particles for alpha-alumina formation selected from the group consisting of alpha-FeOseed particles, alpha-AlOseed particles, and combinations thereof; 0.50 to 5.00 weight percent of MgO; 0.02 to 0.40 weight percent of LiO or a molar equivalent amount of at least one alkali metal oxide selected from the group consisting of: NaO; KO; combinations of NaO and LiO; combinations of KO and LiO; combinations of NaO and KO; and combinations of LiO, NaO, and KO; and 91.08 to 99.48 weight percent of AlO. Methods of making the abrasive particles and abrasive articles incorporating them are also disclosed.

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Hudson, WI, United States of America

Grant E Greske