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Abrasive articles including abrasive particles of silicon nitride

  • US 9,598,620 B2
  • Filed: 01/16/2015
  • Issued: 03/21/2017
  • Est. Priority Date: 06/30/2011
  • Status: Active Grant
First Claim
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1. A shaped abrasive particle comprising:

  • a body having (i) a majority content of silicon nitride; and

    (ii) a minority content of sintering material including Nd2O3 and Y2O3, wherein the shaped abrasive particle comprises a content (wt %) of Nd2O3 greater than a content (wt %) of Y2O3;

    wherein the body of the shaped abrasive particle has a two-dimensional shape as viewed in a plane defined by a length and a width of the body; and

    wherein the two-dimensional shape is selected from the group consisting of a polygonal shape, an ellipsoidal shape, a numeral, a Greek alphabet character, a Latin alphabet character, a Russian alphabet character, and a complex shape utilizing a combination of polygonal shapes.

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