Granular silicon carbide abrasive grain coated with...

Details Granular silicon carbide abrasive grain coated with... Granular silicon carbide abrasive grain coated with...

B - Operations, Transporting

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B24D 3/34 (2006.01) B24D 3/00 (2006.01) C08J 5/14 (2006.01) C09K 3/14 (2006.01)

Patent

CA 1213443

Granular Silicon Carbide Abrasive Coated with Refractory Material, Method of Making the Same and Articles Made Therewith Abstract of the Disclosure Improved granular abrasive material comprises silicon carbide particles at least partially coated with an integral, durable surface layer of a hard refractory material comprising metal nitride or carbide. Hard refractory materials which provide a useful coating include, for example, silicon nitride or carbide, titanium nitride or carbide, sialon, and others. The surface layer is preferably provided by chemical vapor deposition, most preferably utilizing a fluidized bed. The improved granular abrasive material is particularly useful in various abrasive products such as coated abrasive products, nonwoven abrasive products and abrasive grinding wheels. z

456979

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