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

Abrasive particles comprising a core of alumina-based mineral coated by cathodic arc deposition to provide a first layer of a first refractory material, the first layer being substantially uniform, and a second refractory material covering at least a portion of the first refractory material. The cor...

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Bibliographische Detailangaben
Hauptverfasser: LAWRENCE LEE MARTIN, MICHAEL WILLIAM CARPENTER, JONATHAN GEORGE STORER
Format: Patent
Sprache:eng
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Zusammenfassung:Abrasive particles comprising a core of alumina-based mineral coated by cathodic arc deposition to provide a first layer of a first refractory material, the first layer being substantially uniform, and a second refractory material covering at least a portion of the first refractory material. 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.