High pressure reaction vessel for growing diamond on diamond see

Details High pressure reaction vessel for growing diamond on diamond see High pressure reaction vessel for growing diamond on diamond see

1980-05-09

1982-07-20

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

206525, 422240, C01B 3106

Patent

active

043405762

ABSTRACT:
Means are described for suppressing spontaneous diamond nucleation in the vicinity of diamond seed material located in reaction vessel construction used in the growth of diamond by the process disclosed in U.S. Pat. No. 3,297,407--Wentorf, Jr.
In assembly of the reaction vessel a portion of the lower surface of the plug of catalyst-solvent metal is disposed in contact with the diamond seed material. Preferably all of the balance of the lower surface area of the catalyst-solvent plug adjacent the seed material is covered with a disc or layer of a material different from the catalyst-solvent metal employed and selected from a list of specific materials that suppress diamond nucleation.

REFERENCES:
patent: 3297407 (1967-01-01), Wentorf
patent: 3303053 (1967-02-01), Strong et al.
patent: 3317035 (1967-05-01), Cannon
patent: 3346102 (1967-10-01), Strong
patent: 3423177 (1969-01-01), Bovenkerk
Armagnac, "Popular Science", vol. 197, No. 3, 1970, pp. 82, 83, 134, 137.

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