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Department of Physics

Material Physics and Technology at Extreme Conditions - Laboratory of Crystallography - Prof. Dubrovinskaia

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Transition metal carbonitrides at high pressure

The design of novel superhard materials is based on the combination of a transition metal (TM), characterized by high valence electron density, with the first-row elements, which form strong short covalent bonds. Nowadays, high-pressure materials synthesis enables finding new compounds with enhanced mechanical properties in relatively simple binary systems such as C-N, TM-N and TM-C. Investigations of more complex ternary TM-C-N systems under high pressure may contribute to extending the class of novel materials with unique mechanical properties due to enlarging of variability of possible crystal structures. Thus, this study aims at the synthesis of new materials with exceptional mechanical properties and at improving fundamental understanding of the chemistry and structures of transition metal carbonitrides under high pressure.

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