Researchers have developed a technology for the production of diamonds from nanosized carbon particles under normal pressure and ambient temperature..
Make Your Own Diamonds! | Earth Lab
In nature, such crystals are formed in the bowels of the earth under the influence of high pressure and temperature…
Recently, a group of researchers from the University of North Carolina used an alternative technique. It involves the action of a laser beam on carbon nanofibers, which in just 100 nanoseconds heats up to 3727 °C and instantly melt. Such an amount of energy enough to evaporate the material, to prevent this, used a plastic, glass or sapphire substrate to limit heat and stop the phase change. Next, the molten metal is rapidly cooled to crystallize into diamond..
The image on the left shows a carbon nanorod before laser irradiation, and on the right has already been turned into a diamond fiber..
Using this technology, it is possible to create diamond nanofibers for electronics, quantum computers. or as an admixture for carbon nanostructures. From the latter, in turn, coatings can be made that increase the strength of various products..
Earlier, a group of Asian scientists found that diamond nano-needles bend 9% without breaking the integrity.
text: Ilya Bauer, photo: North Carolina State University, storage.yvision
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