Method for producing single crystal diamond and single crystal diamond
AssigneesDisco Corporation, Ioffe Institute
InventorsRyuji Oshima, Kanji Iizuka, Fedor Shakhov, Alexander Vul
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Abstract
Provided are a method for producing a single crystal diamond capable of synthesizing a single crystal diamond having excellent durability at a low cost in a short time, and the single crystal diamond. The method for producing the single crystal diamond employs a high-temperature and high-pressure method, and the single crystal diamond is synthesized by exposing raw materials composed of amorphous carbon and a carbon compound to a pressure and a temperature in a thermodynamically stable region of the diamond in a carbon phase equilibrium diagram.
Claims6
A method for producing a single crystal diamond using a high-temperature and high-pressure method,
- which comprises synthesizing the diamond by mixing raw materials consisting of amorphous carbon and carbon compounds having hydrogen and/or hydroxyl groups in a mass ratio of the amorphous carbon:
- the carbon compounds=7:3 to 4:6, and retaining under conditions of pressure of 5 to 10 GPa and temperature of 1300 to 1800° C. for 1 to 300 seconds.
Dependencies are inferred from the claim text.