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Coated abrasive materials and method of manufacture

  • US 8,118,896 B2
  • Filed: 09/21/2005
  • Issued: 02/21/2012
  • Est. Priority Date: 09/23/2004
  • Status: Active Grant
First Claim
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1. A method of coating ultrahard abrasive particles, comprising:

  • providing a plurality of ultrahard abrasive particles selected from the group consisting of diamond, cubic boron nitride, and a combination thereof, wherein the ultrahard abrasive particles have vitreophilic surfaces which form chemical bonds with oxides;

    coating the ultrahard abrasive particles with an oxide precursor material selected from the group consisting of an amorphous or nano-crystalline oxide, a hydroxide, and an oxo-hydroxide; and

    heat treating the coated ultrahard abrasive particles to dry and purify the coats.

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