Process for preparing a silicon-bonded polycrystalline diamond b

Details Process for preparing a silicon-bonded polycrystalline diamond b Process for preparing a silicon-bonded polycrystalline diamond b

1978-03-22

1979-09-25

Arnold, Donald J.

Abrasive tool making process, material, or composition

With inorganic material

Metal or metal oxide

51307, 106 44, C04B 3556

Patent

active

041689577

ABSTRACT:
A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressure being applied to the container and its contents sufficient to dimensionally stabilize the container and its contents. The resulting shaped substantially isostatic system of powder-enveloped container is hot-pressed whereby fluid eutectiferous silicon-rich alloy is produced and infiltrated through the interstices between the diamond crystals producing, upon cooling, an adherently bonded integral body.

REFERENCES:
patent: 3239321 (1966-03-01), Blainey et al.
patent: 3574580 (1971-04-01), Stromberg et al.
patent: 3850591 (1974-11-01), Wentorf
patent: 3852078 (1974-12-01), Wakatsuki et al.
patent: 3912500 (1975-10-01), Vereschagin
patent: 3913280 (1975-10-01), Hall
patent: 3982911 (1976-09-01), Lee

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