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Tude par ACD du domaine hors d'equilibre du systemexLiCl-(1−x)H2O (0<x<0.18)

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Abstract

The non-equilibrium region of the phase diagramxLiCl-(1−x)H2O (0<x< 0.18) has been studied by means of a Mettler TA 2000 B heat flow differential scanning calorimeter. The metastable lines of the diagram have been established and the different phases obtained explained. A region has been found where the glass formed cannot recrystallize, the eutectic line being below the temperature of the transition glass.

Zusammenfassung

Das Nicht-Gleichgewichtsgebiet des PhasendiagrammsxLiCl-(1−x)H2O (0⩽x⩽ 0.18) wurde mittels DSC unter Verwendung des Scanningkalorimeters Mettler TA 2000 B untersucht. Die metastabilen Zweige des Diagramms wurden ermittelt und die erhaltenen verschiedenen metastabilen Phasen erklärt. Es wurde ein Bereich festgestellt, in dem das gebildete Glas nicht rekristallisieren kann, da das Eutektikum unterhalb der Temperatur der Glasbildung liegt.

Резюме

С помощью дифференци ального сканирующег о калориметра теплево го потока Меттлер ТА 2000 Б проведе но исследование нера вновесной области фазовой диаг раммы системыxLiCl-(1−х)Н2О, где 0 ⩽х ⩽ 0.18. Установлены метастабильные лини и диаграммы и объяснено образова ние различных фаз. Най дена область, где образующ ееся стекло не может рекристалли зоваться, поскольку л иния эвтектики лежит ниже температуры расстекловывания.

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Authors and Affiliations

  1. Laboratoire de Thermochimie Minerale Associe au CNRS n∘ 116, INSA de Lyon, 20, Avenue Albert Einstein, 69621, Villeurbanne Cedex, France

    P. Claudy & J. M. Letoffe

  2. Laboratoire de Physico-Chimie Minerale Associe au CNRS n∘ 116, 43, Bd du 11 Novembre 1918, 69621, Villeurbanne Cedex, France

    J. J. Counioux & R. Cohen-Adad

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  1. P. Claudy
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  2. J. M. Letoffe
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  3. J. J. Counioux
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  4. R. Cohen-Adad
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Claudy, P., Letoffe, J.M., Counioux, J.J. et al. Tude par ACD du domaine hors d'equilibre du systemexLiCl-(1−x)H2O (0<x<0.18). Journal of Thermal Analysis 29, 423–431 (1984). https://doi.org/10.1007/BF01913452

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  • DOI: https://doi.org/10.1007/BF01913452

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