Granular silicon carbide abrasive grain coated with refractory m

Details Granular silicon carbide abrasive grain coated with refractory m Granular silicon carbide abrasive grain coated with refractory m

1983-06-29

1985-03-19

Lieberman, Paul

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51308, 51309, 427217, 427250, B24D 1100

Patent

active

045057206

ABSTRACT:
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.

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