Phase equilibria, phases and compounds in the Ti–C system

Abstract

The results of experimental and theoretical investigations of the phase equilibria in the titanium–carbon system are generalised. The generalised thermodynamic characteristics of disordered titanium carbide TiC _y , are reported. Peculiarities of the crystal structures of all the known and hypothetical compounds of titanium with carbon are considered in detail. The X-ray diffraction patterns which allow identification of all these compounds are presented. The phase diagrams of the Ti–C system constructed with allowance for atomic ordering of non-stoichio metric carbide, TiC _y , and for the existence of the molecular cluster-like compounds Ti ₈ C ₁₂ and Ti ₁₃ C ₂₂ (TiC ₂ ) are discussed. The bibliography includes 142 references.