Diamond compacts and process for making same

Details Diamond compacts and process for making same Diamond compacts and process for making same

1988-09-27

1990-08-14

Lieberman, Paul

Abrasive tool making process, material, or composition

With inorganic material

Clay, silica, or silicate

51309, B24D 302

Patent

active

049483889

ABSTRACT:
A diamond compact comprised of 60-95 volume percent of diamond crystals which have been plastically deformed so that they form a rigid framework structure in which contacts between the diamond crystals occur over surfaces arising from plastic deformation of the diamond crystals during formation of the compact under pressure and temperature conditions within the graphite stability field. The diamond framework structure is bonded together by interstitial refractory carbide phases or metallic phases comprised of metals not forming carbides in the presence of carbon. The phases have a melting point greater than 1600.degree. C. The compact comprises less than about 2 percent volume of graphite and possesses a compressive strength greater than 10 kbars.

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patent: 4151686 (1979-03-01), Lee et al.
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patent: 4231195 (1980-11-01), DeVries et al.
patent: 4241135 (1980-12-01), Lee et al.
patent: 4259090 (1981-03-01), Bovenkerk

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