Hongwu International Group Ltd, with HWNANO brand, is a high-tech enterprise focusing on manufacturing, research, development and processing of nanoparticles,nanopowders, micron powders.
Scientists have created synthetic diamonds that are harder and more durable than natural diamonds.
At the Yanshan University, researchers have enhanced fake diamonds by creating nanotwinned diamonds (nt-diamonds)”, according to Nature magazine.
The team explained that previous attempts at creating harder synthetic diamonds using the nanotwinned method failed, as the carbon precursors such as graphite, amorphous carbon, and glassy carbon had not worked.
However recent success in synthesizing nanotwinned cubic boron nitride (nt-cBN) with a twin thickness down to ~3.8?nm makes it feasible to simultaneously achieve smaller nanosize, ultrahardness and superior thermal stability,” the researchers stated.
Prior to this new research nanograined diamond grain structures were limited to between 10 and 30nm, and had degraded thermal stability compared to natural diamonds.
Now the researchers have created the direct synthesis of nt-diamond with an average twin thickness of ~5nm, using a precursor of onion carbon Nitrides Nanoparticles at high pressure and high temperature, and the observation of a new monoclinic crystalline form of diamond coexisting with nt-diamond.
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