An Improved Model for Molar Volumes of Ti-Carbide, Ti-Nitride and Ti-Carbo-Nitride
摘要
Molar volume of titanium carbonitride is modelled as function of composition and temperature by two-sublattice model Ti1(C, N, Va)1. Deviations from the ideal solution model in Ti–TiX sections were modelled by regular solution model between X atoms and vacancies in the (X, Va) sublattice. The combined binary models can describe molar volumes of ternary Ti carbonitrides reasonably well without introducing any ternary parameters, proving a good physics behind the binary models.