A thermodynamic assessment of the Nd-C system

The Nd-C binary system has been assessed based on the experimental investigation, thermodynamic calculations and the literature survey. The intermediate compounds Nd2C3 and βNdC2 (high-temperature form of NdC2 phase) were considered to be the non-stoichiometric phases whereas the αNdC2 (low-temperature form of NdC2 phase) was treated as the stoichiometric phase. Contents of carbon in the Nd-Csat samples in Nd-Nd2C3 range were measured in the present study. The phase diagram of Nd-C system and enthalpies of formation of Nd2C3 and NdC2 carbides have been modeled using the FactSage software.