Method of coating alumina particles with refractory material, abrasive particles made by the method and abrasive products containing the same
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United States of America Patent
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Feb 4, 1992
Grant Date -
N/A
app pub date -
May 2, 1990
filing date -
May 2, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
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