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. Synthetic forms can be produced far quicker, but they typically still require some intense squishing for up to several weeks.
While high temperatures were still required, in the region of 1,025°C or 1,877°F, a continuous diamond film was formed in 150 minutes, and at 1 atm . That's the equivalent of the pressureThe team behind the innovative approach, led by researchers from the Institute for Basic Science in South Korea, is confident that the process can be scaled up to make a significant difference in the production of synthetic diamonds.
"We discovered a method to grow diamonds at 1 atm pressure and under a moderate temperature by using a liquid metal alloy,"was achieved using a carefully mixed blend of liquid metals: gallium, iron, nickel, and silicon. A custom-made vacuum system was built inside a graphite casing to very rapidly heat and then cool the metal while it was exposed to a combination of methane and hydrogen.
Though the concentration of carbon forming the crystals decreased at a depth of just a few hundred nanometers, the researchers expect the process can be improved with a few tweaks.
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