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Thermodynamic descriptions for Au–Fe and Na–Zn binary systems

“…against temperatures with alloy concentration cells using aluminosilicate glass as the solid electrolyte. The results of Mathewson [20] and Morachevskii et al [21] are very close to each other. Cetin and Ross [22] studied the liquid miscibility gap boundary of the Na-Zn system in the composition range of 10-90 at.% Zn by thermal analysis.…”

“…The calculated Na activities are presented in Fig. 6, where the experimental values from Morachevskii et al [21] at 873 K are also superimposed for comparison. Invariant reactions in the Na-Zn binary system are listed in Table 4, where the calculated and experimental data are presented.…”

“…Invariant halts were reported at 830 and 370 K. In addition, the author also presented the data for the liquidus curve near the Zn-rich side. Morachevskii et al [21] studied the liquidus points of the Zn-rich side by the breaks in curves of e.m.f. against temperatures with alloy concentration cells using aluminosilicate glass as the solid electrolyte.…”

“…The experimental results showed that the three invariant temperatures were at 830, 692.4, and 370 K, respectively. The Na activities in the liquid phase over a concentration range from 93 to 99.5 at.% Zn at 873 K were measured by Morachevskii et al [21] with alloy concentration cells in which aluminosilicate glass was used as the solid electrolyte. The reported Na activities show a positive deviation from the ideal solution behavior, indicating the presence of a miscibility gap for the liquid phase.…”

Thermodynamic evaluation and optimization of the (Na + K + S) system

“…The melts show a large tendency for supercooling and glass-formation due to the existence of the large polysulphide chains. Reviews of the physico-chemical properties of the liquid and solids in the (K + S) and (Na + S) systems have been made by Sangster and Pelton [6,7], Morachevksii [8,9], and Borgstedt and Guminski [10].…”