Elastic Properties of Transition Metal Nitrides and Carbides
نویسندگان
چکیده
In this paper, we study the elastic properties (i.e. Bulk modulus B) of a series of early transition metal mono-nitrides and carbides crystallize in the NaCl-type face centered cubic (FCC) structure has been investigated using plasma oscillation theory of solids. The same approach has previously been applied to rock-salt structured rare-earth mono-chalcogenides [J. Alloys and Compd. 537 (2012) 250-254]. We have presented an expression relating the bulk modulus B (in GPa) for early transition metal mono-nitrides (TMN) and carbides (TMC) with their plasmon energy ħωp (in eV). The bulk moduli of these compounds exhibit a linear relationship when plotted on a log-log scale against plasmon energy. We have applied the modified relation on rock-salt structured (TMN’s & TMC’s) solids. The trends are discussed and compared with available experimental data and theoretical results reported by earlier researchers.
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