2020-11-20

Scientists have found a way to forge rare diamonds at room temperature in minutes

By yqqlm yqqlm

According to foreign media reports, traditional diamonds need billions of years of development in the depths of the earth to form. Extreme pressure and temperature provide suitable conditions for carbon crystallization. However, scientists are now studying forging these gems A more convenient way. Recently, an international research team has successfully shortened this process to just a few minutes, demonstrating a new technology that can not only form quickly but also form at room temperature.

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Although the idea of ​​making a diamond in a few minutes in the laboratory is attractive to jewelers, rappers, or those who want to solve a certain problem, This is not the ultimate goal of this type of research. The man-made version of this material known for its toughness can be used as a new tool for cutting superhard materials, a new protective coating or other industrial equipment.

It is reported that this latest breakthrough was led by scientists from the Australian National University (ANU) and RMIT University, who used a device called a diamond anvil. Researchers use this device to create the extreme pressure required to produce superhard materials. The research team applied pressure equivalent to 640 African elephants on the top of a ballet shoe, which could trigger unexpected reactions in the carbon atoms in the device.

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“The turning point of the story is how we apply pressure,” said Australian National University professor Jodie Bradby.”In addition to the very high pressure, we also let the carbon experience something called’shearing’ –Like a twisting force or sliding force. We think this allows carbon atoms to move to the proper position to form a hexagonal meteorite diamondAnd conventional diamonds.”

Among them, conventional diamonds may be found on engagement rings, while hexagonal meteorite diamonds are relatively rare and are only found at the site of meteorite impact. Using an advanced electron microscope, the research team conducted a detailed examination of the samples and found that these materials were formed in bands similar to the diamond”river”.

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Professor Dougal McCulloch of the Royal Institute of Technology said:”Our photos show that under the new method developed by our inter-institutional team, conventional diamonds are only formed in the middle of these hexagonal meteorite diamonds. First. It’s amazing to see these small rivers composed of hexagonal meteorite diamonds and ordinary diamonds this time. It really helps us understand how they are formed.”

The research team hopes this Technology enables them to produce a large number of man-made diamonds, especially hexagonal meteorite diamonds. It is predicted that the hardness of hexagonal meteorite diamond is 58%higher than that of ordinary diamond.

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Bradby said:”Hexagonal meteorite diamonds have the potential to be used to cut super-solid materials in mines.”

Relevant research reports have been published on”Small”.