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Thermodynamic properties and dissociation of SrLaGaO4

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Abstract

The solution enthalpy of SrLaGaO4 in the 2PbO · B2O3 melt at 973 K was measured using a hightemperature Calvet microcalorimeter. The enthalpies of formation of SrLaGaO4 from the constituent oxides and constituent elements were determined to be -96.8 ±5.9 and -2128.7 ±6.1 kJ/mol, respectively. The partial pressures of the vapor species over molten SrLaGaO4 at Tm = 1793 K were evaluated. The equilibrium oxygen pressure at 1793 K was found to be 4.13 x 10-2 Pa.

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Authors and Affiliations

  1. Lomonosov State Academy of Fine Chemical Technology, pr. Vernadskogo 86, 117571, Moscow, Russia

    A. V. Novoselov & G. V. Zimina

  2. Moscow State University, 119899, Moscow, Russia

    L. P. Ogorodova

  3. Institute of Electronic Materials Technology, Vylchinska 133, 01919, Warsaw, Poland

    A. Pajaczkowska

Authors
  1. A. V. Novoselov
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  2. L. P. Ogorodova
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  3. G. V. Zimina
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  4. A. Pajaczkowska
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Novoselov, A.V., Ogorodova, L.P., Zimina, G.V. et al. Thermodynamic properties and dissociation of SrLaGaO4 . Inorg Mater 36, 929–931 (2000). https://doi.org/10.1007/BF02758706

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  • DOI: https://doi.org/10.1007/BF02758706

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