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US 5,733,664 AGranted
Matrix for a hard composite
AssigneeKennametal Inc.
InventorsHarold E. Kelley, William E. Silvis, Charles J. Terry, Gary R. Peterson
Life of this patent
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Abstract
A matrix powder for formation along with an infiltrant into a matrix for use as a wear element or for use in retaining at least one discrete hard element. The matrix powder includes crushed sintered cemented tungsten carbide particles. The composition of the crushed sintered cemented tungsten carbide comprises between about 6 weight percent and about 13 weight percent binder metal and between about 87 weight percent and about 94 weight percent tungsten carbide.
Claims27
A matrix powder for formation along with an infiltrant into a matrix, the matrix powder comprising:
- crushed sintered cemented tungsten carbide particles having a particle size of greater than 37 micrometers and less than or equal to 177 micrometers;
- and the composition of the crushed sintered cemented tungsten carbide comprising between about 5 weight percent and about 20 weight percent binder metal and between about 80 weight percent and about 95 weight percent tungsten carbide.
Dependencies are inferred from the claim text.