Akademik Məlumat İdarəetmə Sistemi
Inorganic Materials, vol.47, no.4, pp.361-364, 2011 (SCI-Expanded, Scopus)
The Cu-Tl-Te system has been studied in the composition region Cu-CuTe-Cu 2TlTe 2 using emf measurements on reversible concentration cells relative to a thallium electrode. The partial subsolidus phase diagram inferred from the emf data includes the ternary compounds Cu 9TlTe 5, Cu 3TlTe 2, and Cu 2TlTe 2. The emf data were used to evaluate the relative partial thermodynamic functions (ΔḠ,ΔH̄,and ΔS̄) of the thallium in the alloys. From the subsolidus phase diagram, we identified the potential-determining reactions responsible for these functions and calculated the standard thermodynamic functions of formation and standard entropies of the ternary compounds Cu 9TlTe 5 (-Δ f G 0(298 K) = 244.0 ± 2.4 kJ/mol,-Δ f H 0(298 K) = 241 ± 14 kJ/mol, S 0(298 K) = 621 ± 7 J/(mol K)), Cu 3TlTe 2 (117.1 ± 1.2, 117 ± 5, 264 ± 4), and Cu 2TlTe 2 (94.8 ± 0.9, 92 ± 7, 237 ± 3). © 2011 Pleiades Publishing, Ltd.