Thermodynamic assessment of the Ni-Sb binary system

Zhanmin CAO, Yoshikazu TAKAKU, Ikuo OHNUMA, Ryosuke KAINUMA, Hongmin ZHU, Kiyohito ISHIDA

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


The Ni-Sb binary alloy system was thermodynamically assessed using CALPHAD approach in this article. Excess Gibbs energies of solution phases, liquid and fcc phases, were formulated using the Redlich-Kister expression. The intermediate phases were modeled by the sublattice model with (Ni,Va)0.5(Ni,Sb)0.25(Ni)0.25 for Ni3Sb_HT phase and (Ni,Va)0.3333(Sb)0.3333(Ni,Va)0.3333 for NiSb phase. The other phases including Ni3Sb, Ni7Sb3, and NiSb2 were treated as stoichiometric compound owing to their narrow composition ranges. Based on the reported thermodynamic properties and phase diagram data, the thermodynamic parameters of these phases were optimized, and the obtained values can reproduce the available experimental data well.

Original languageEnglish
Pages (from-to)384-392
Number of pages9
JournalRare Metals
Issue number4
Publication statusPublished - 2008 Apr


  • Ni-Sb binary system
  • phase diagram
  • thermodynamic assessment


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