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High temperature study of the Zirconium-Rhodium system

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Abstract

High temperature (T>1600 K) part of the phase diagram and calorimetric studies in the binary Zr-Rh system are presented. Five intermetallic compounds: Zr2Rh, ZrRh, Zr3Rh4, Zr3Rh5 and ZrRh3 are present in the compositional phase diagram. The enthalpy of formation of Zr2Rh, ZrRh and ZrRh3 have been measured and refined from an optimization of the phase diagram. A thermodynamic description of the system is proposed.

Zusammenfassung

Der Hochtemperaturteil (T>1600 K) des Phasendiagramms des binären Systems Zr-Rh und die Ergebnisse diesbezüglicher kalorimetrischer Messungen werden mitgeteilt. Fünf intermetallische Verbindungen (Zr2Rh, ZrRh, Zr3Rh4, Zr3Rh5 und ZrRh3) treten im Phasendiagramm auf. Die Bildungsenthalpie von Zr2Rh, ZrRh und ZrRh3 wurde bestimmt und durch Optimierung des Phasendiagramms verfeinert. Eine thermodynamische Beschreibung des Systems wird gegeben.

Резюме

Представлены высоко температурная (Т> 1600 К) часть фазовой диагра ммы и калориметрические и сследования двойной системы Zr-Rh. На сложной фазовой ди аграмме идентифицированы пя ть интерметаллическ их соединений Zr2Rh, ZrRh, Zr3Rh4, Zr3 Rh5 и ZrRh3. Измеренные энтальпи и образования фаз Zr2Rh, ZrRh и ZrRh3 были угочнены на основе оптимизации фазовой диаграммы. Предложен о термодинамическое о писание данной систе мы.

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Authors and Affiliations

  1. Laboratoire de Thermodynamique Métallurgique, UA CNRS 1108-Université de Nancy I, BP 239, 54506, Vandoeuvre-les-Nancy, France

    J. L. Jorda, J. C. Gachon, J. Charles & J. Hertz

  2. DPMC - Université de Genève, 24, Quai E.-Ansermet, CH 1211, Genève 4, Schwitzerland

    J. L. Jorda

Authors
  1. J. L. Jorda
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  2. J. C. Gachon
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  3. J. Charles
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  4. J. Hertz
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Jorda, J.L., Gachon, J.C., Charles, J. et al. High temperature study of the Zirconium-Rhodium system. Journal of Thermal Analysis 34, 551–557 (1988). https://doi.org/10.1007/BF01913198

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