Abstract
The solubility of oxygen in liquid nickel containing zirconium at 1873 K has been experimentally studied for the first time. It has been shown that zirconium is a rather strong deoxidizing agent in liquid nickel. The equilibrium constant of the reaction of zirconium and oxygen dissolved in liquid nickel (logK(1)(Ni) =–6.788), the interaction parameters characterizing these solutions (eZr(Ni)O =–2.01; eO(Ni)Zr =–0.35; eZr(Ni)Zr = 0.24), and the activity coefficient of zirconium in nickel at infinite dilution (γZr(Ni)o = 1.03 × 10–8) have been determined. The zirconium content at the minimum of the oxygen solubility curve and the corresponding oxygen concentration have been determined.
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