METHOD OF COATING ALUMINA PARTICLES WITH REFRACTORY MATERIAL, ABRASIVE PARTICLES MADE BY THE METHOD AND ABRASIVE PRODUCTS CONTAINING THE SAME

摘要

2080598 9117225 PCTABS00008 Abrasive particles comprising a core of alumina-based mineral coated by cathodic arc deposition with a metal boride, carbide, or nitride refractory material are provided. The core can be fused alumina or an alumina-based ceramic. Improved abrasive products having at least a portion of their conventional abrasive particles replaced with the coated abrasive particles are also provided.