C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 31/06 (2006.01) B01J 3/06 (2006.01)
Patent
CA 2073613
A reaction vessel for use in producing large diamond crystals of good quality and yield includes a reaction volume and a reaction mass located in the volume. The reaction mass comprises a plurality of seed particles located in or on a surface in the reaction volume and a carbon source separated from the seed particles by a mass of metallic catalyst/solvent for diamond synthesis. The mass comprises alternating layers of carbon- rich and carbon-lean metallic catalyst/solvent which lie parallel or substantially parallel to the surface. There is also provided a mass of alternating layers of carbon-rich and carbon-lean metallic catalyst/solvent.
Burns Robert C.
Welch Dennis L.
de Beers Industrial Diamond Division (proprietary) Limited
de Beers Industrial Diamonds (pty) Ltd
Gowling Lafleur Henderson Llp
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