Diamond composite and method for producing the same

Details Diamond composite and method for producing the same Diamond composite and method for producing the same

1987-12-22

1989-07-04

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

419 9, 419 46, 419 48, 428408, 428621, B22F 300

Patent

active

048449881

ABSTRACT:
A diamond composite combined with a cobalt-containing substrate, comprising: a sintered mass of diamond, in which practically all the diamond particles are joined immediately with adjacent particles, a mass of cobalt-containing carbide, said latter mass being larger than the former and said first and latter masses being of a same cross section at the opposed ends, and an intermediate layer of a solid material which consists of Mo, Co and C with a minor proportion of inevitable impurities and which comprises a molybdenum carbide exhibiting a melting point within 200 degrees C. of that of the first said carbide material, said layer intervening between the masses and having a total radial cross sectional area of at least 80% but not greater than 97% of that of the diamond mass and carbide masses at the joint and a thickness of, at least, 25 microns over the whole cross sectional area and method for producing the same.

REFERENCES:
patent: 4219199 (1980-08-01), Okuda
patent: 4694918 (1987-09-01), Hall
patent: 4695321 (1987-09-01), Akashi et al.

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