Effect of structural vacancies on the nature of metal-metal and metal-carbon bonds in cubic monocarbides

摘要

Values of specific heat capacity, thermal expansioncoefficient, bulk elasticity modulus, Gruneisen coefficient, as wellas exponents of the Buckingham potential and criticalcharacteristics of PV-diagrams determined by metal-metal andmetal-carbon reactions for monocarbides of Ti, Zr, V, and Nb inthe homogeneity region are calculated. Exponents of the potentialindicate that structural vacancies replace the contribution ofcomponents of the chemical bond for metal-metal and metal-carbon interactions in Ti, Zr, V, and Nb carbides and for theircompounds as a whole.