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Thermodynamic properties of liquid magnesium-nickel alloys

Thermodynamische Eigenschaften flüssiger Mg-Ni Legierungen

  • Anorganische Und Physikalische Chemie
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Summary

Magnesium vapor pressures were determined over liquid Mg-Ni alloys for compositionsx Mg>0.65 using an isopiestic method. Data points between 760 and 890°C were evaluated to derive corresponding partial thermodynamic properties. The composition dependence of the magnesium activities in liquid alloys is shown for a temperature of 1073 K. Additionally, it is possible to obtain the shape of the liquidus curve between about 60 and 70 at% Mg from the results of the isopiestic measurements.

Zusammenfassung

Magnesiumdampfdrücke wurden mit Hilfe einer isopiestischen Methode über flüssigen Mg-Ni-Legierungen mit einer Zusammensetzungx Mg>0.65 bestimmt. Aus experimentellen Punkten zwischen 760 und 890°C wurden die entsprechenden partiellen thermodynamischen Eigenschaften abgeleitet. Es wird die Konzentrationsabhängigkeit der Magnesiumaktivitäten in flüssigen Legierungen bei 1073 K gezeigt. Zusätzlich kann aus dem Ergebnis der isopiestischen Messungen der Verlauf der Liquiduskurve zwischen etwa 60 und 70 At% Mg ermittelt werden.

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Micke, K., Ipser, H. Thermodynamic properties of liquid magnesium-nickel alloys. Monatsh Chem 127, 7–13 (1996). https://doi.org/10.1007/BF00807404

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  • DOI: https://doi.org/10.1007/BF00807404

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