Polycrystalline diamond body/silicon carbide substrate composite

Details Polycrystalline diamond body/silicon carbide substrate composite Polycrystalline diamond body/silicon carbide substrate composite

1979-02-09

1980-12-23

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

51307, 51308, 51309, 75200, 106 44, 428218, 428405, 428408, 428446, 428450, 428539, 428911, 428404, B32B 326, B32B 516

Patent

active

042411351

ABSTRACT:
A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy and a silicon carbide ceramic substrate 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 and contacts the contacting face of the silicon carbide substrate sufficiently producing, upon cooling, an adherently bonded integral composite.

REFERENCES:
patent: 3239321 (1966-03-01), Blainey et al.
patent: 3852078 (1974-12-01), Wakatsuki
patent: 3912500 (1975-10-01), Vereschagin et al.
patent: 3913280 (1975-10-01), Hall
patent: 3968194 (1976-06-01), Prochazka
patent: 3982911 (1976-09-01), Lee
patent: 4024675 (1977-05-01), Naidich et al.
patent: 4031178 (1977-06-01), Johnson et al.
patent: 4110084 (1978-08-01), Lee et al.

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