Abrasive articles including abrasive particulate materials, coated abrasives using the abrasive particulate materials and methods of forming
First Claim
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1. An abrasive article comprising:
- an abrasive particulate material comprising alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition comprising a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg;
Ca] within a range between about 1;
1 and about 10;
1, wherein the abrasive particulate material comprises Mg in an amount of at least about 0.1 wt % and not greater than about 2 wt % based on the total weight of the abrasive particulate material and further comprising at least about 0.2 wt % Ca for the total weight of the abrasive particulate material, and wherein the abrasive particulate material is free of a rare earth oxide.
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Abstract
An abrasive particulate material which is made of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition including a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg:Ca] within a range between about 1:1 and about 10:1, and a Ca amount is at least about 0.2 wt % Ca for the total weight of the abrasive particulate material.
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21 Claims
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1. An abrasive article comprising:
- an abrasive particulate material comprising alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition comprising a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg;
Ca] within a range between about 1;
1 and about 10;
1, wherein the abrasive particulate material comprises Mg in an amount of at least about 0.1 wt % and not greater than about 2 wt % based on the total weight of the abrasive particulate material and further comprising at least about 0.2 wt % Ca for the total weight of the abrasive particulate material, and wherein the abrasive particulate material is free of a rare earth oxide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- an abrasive particulate material comprising alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition comprising a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg;
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13. An abrasive article comprising:
- an abrasive particulate material consisting essentially of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition consisting essentially of a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg;
Ca] within a range between about 1;
1 and about 10;
1, wherein the abrasive particulate material comprises Mg in an amount of at least about 0.1 wt % and not greater than about 2 wt % based on the total weight of the abrasive particulate material and further comprising at least about 0.2 wt % Ca for the total weight of the abrasive particulate material. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
- an abrasive particulate material consisting essentially of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition consisting essentially of a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg;
Specification