Abstract Australian scientists have recently made a breakthrough in the development of blue silk mullite under artificial conditions. However, the current artificial blue silk is only used for industrial purposes and cannot be used in the decorative field. Recently, the Australian University...
Australian scientists have recently made a breakthrough in the development of blue silk mullite under artificial conditions. However, the current artificial blue silk is only used for industrial purposes and cannot be used in the decorative field. Recently, Australian scientists have created a rare diamond that has a 58% increase in hardness compared to regular diamonds.
The Australian National University Laboratory produced a nanoscale blue silk garland. Unlike ordinary diamonds, which consist of a carbon cubic lattice, the special feature of the blue silk is that it is an atomic hexagonal structure, which makes it harder than ordinary diamonds. Scientists predict that this diamond will be harder than the existing diamonds in nature. The results were published in the Science Report of the Nature magazine published on November 29.
In 1967, scientists discovered blue silk stones in the debris of meteorites. In nature, it is currently only produced during a meteorite impact on the ground.
“The atomic hexagonal structure of this diamond makes it much harder than other diamonds. We are now able to produce nanoscales, which is exciting because, in general, such materials are smaller and harder.†Australian National Jodie Bradby, lead researcher at the University Laboratory, said in an interview with the media.
This diamond was also produced in the laboratory before, but it was not very successful. Their method requires a high temperature of 1000 degrees Celsius to achieve.
Brebi has adopted a different technology. They use nanoengineering techniques to make this new material from a carbon that does not have a fixed form (also known as amorphous carbon). They put the carbon in a diamond drilled by two diamonds to create a high pressure in the depths of the earth. With such a device, the researchers only need 112GPA of pressure and 400 degrees Celsius, and it takes 2 hours to make the diamond.
The temperature required for this method is only half of the previous one, which means it can make harder diamonds cheaper and more efficiently.
Due to the high hardness, the Brebe team recommends using this material in mining, which can be used to cut all materials, even different diamonds.
“This new diamond won't be used for any engagement ring, but you are more likely to find it on a mining site. If you need a superhard material to cut things, this new diamond may be easier and help you do it faster. Come," Brebe said.
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