Superhard composite member and method of manufacturing the same

Details Superhard composite member and method of manufacturing the same Superhard composite member and method of manufacturing the same

1996-11-12

1999-03-30

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75238, 75242, 51307, 428552, 419 13, 419 14, 419 16, 419 18, 419 23, 419 35, 419 48, C22C 2902, B22F 312

Patent

active

058892192

ABSTRACT:
A sintered body having diamond grains dispersed and held in a matrix of cemented carbide or cermet is obtained by direct resistance heating and pressurized sintering. The sintering is performed at a liquid phase generating temperature in a short time, so that the diamond grains are not directly bonded to each other. Thus, a superhard composite member that has excellent hardness and wear resistance can be obtained without employing an ultra high-pressure vessel.

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patent: 5158148 (1992-10-01), Keshavan
patent: 5169572 (1992-12-01), Matthews
patent: 5271749 (1993-12-01), Rai et al.
patent: 5585175 (1996-12-01), Brandrup-Wognsen et al.

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