Growing and Releasing Diamonds
Patent, Filed 22 Feb 96, patented 6 Apr 99
DEPARTMENT OF THE NAVY WASHINGTON DC
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A process for making diamond and diamond products includes the steps of implanting ions in a diamond substrate to form a damaged layer of non-diamond carbon below the top surface of the substrate, heating the substrate to about 600-1200 deg C, growing diamond on the top surface of the heated substrate by chemical vapor deposition, and electrochemically etching the damaged layer to separate the grown diamond from the substrate along the damage layer. The diamond product consists of a first diamond layer and a second diamond layer attached to the first layer. The second layer contains damage caused by ions traversing the second layer.
- Geology, Geochemistry and Mineralogy