Bismuth activity measurements and thermodynamic re-optimization of the Ni–Bi System
作者： Gueorgui P. Vassilev , Jolanta Romanowska , Grzegorz Wnuk
DOI: 10.3139/146.101499
关键词: Nickel 、 Isothermal process 、 Phase diagram 、 Solubility 、 Phase (matter) 、 Bismuth 、 Materials science 、 CALPHAD 、 Physical chemistry 、 Thermodynamics 、 Solid solution 、 Physical and Theoretical Chemistry 、 Materials Chemistry 、 Condensed matter physics 、 Metals and Alloys
摘要: Abstract Bismuth thermodynamic activities in Ni – Bi liquid solutions have been measured by the modified isothermal isopiestic method at 1723, 1753 and 1773 K. These results are coupled with thermochemical topological data from literature, order to achieve reliable re-optimization of system CALPHAD method. The model disordered substitutional has applied phase face-centered cubic solid (Ni). compound NiBi3 is stoichiometric modeled a two-sublattice corresponding its formula. nickel solubility bismuth negligible, which why (Bi) considered as consisting only. description Bi: Ni, Va used for modeling nonstoichiometric NiBi phase.
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