The properties of some potential super-hard diamond-like boron–carbon phases are examined using ab initio computational modelling. Both the bulk and shear modulus show a steady decrease with boron concentration. Two specific phases, namely BC3 and BC7, are singled out and their possible graphitic precursor phases considered. Finally, energies of the graphitic phases are related to the super-hard phases with the same stoichiometry.
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J. E. Lowther (2005) studied this question.
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