M-carbon – a new form of superhard carbon.
M-carbon – new allotropic form of superhard carbon. M-carbon are harder than diamond.
M-carbon discovered in conducting the experiments. So in the course of scientific experiments have been made cold compression of graphite at a pressure of 13.4 GPA. As a result, formed material, later called M-carbon, which destroys the diamond anvils, to carry out compression. After removing the pressure the material was turned back into ordinary graphite.
Thus, M-carbon were harder than diamond.
M-carbon has a crystal lattice in the shape of a beveled parallelepiped. Inside each cell are two fragments of flat hexagonal carbon sheets between atoms are formed by connection.
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