Diamond film and solid non-diamond particle composite compositio

Details Diamond film and solid non-diamond particle composite compositio Diamond film and solid non-diamond particle composite compositio

1994-10-20

1996-08-13

Turner, Archene

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

4283044, 4283122, 4283179, 4283191, 428375, 428378, 428401, B29F 500

Patent

active

055450300

ABSTRACT:
Porous and non-porous compositions include diamond particles, non-diamond particles, or mixtures of particles consolidated with polycrystalline diamond. The composite compositions of the present invention may be formed by a process which includes the steps of preforming the particles into a preform having a desired shape, and consolidating the preform with polycrystalline diamond. The polycrystalline diamond is preferably formed using CVD techniques including application of sufficient microwave energy to maintain the preform at a temperature of between about 670.degree. and 850.degree. C. The preform may be rotated during a portion of the deposition process.

REFERENCES:
patent: 4104441 (1978-08-01), Fedoseen et al.
patent: 4231762 (1980-11-01), Hara et al.
patent: 4925701 (1990-05-01), Janson et al.
patent: 4987002 (1991-01-01), Sakamoto et al.

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