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@ARTICLE{Sergeev:817663,
      author       = {Sergeev, Dmitry and Yazhenskikh, Elena and Talukder, N. and
                      Kobertz, Dietmar and Hack, K. and Müller, Michael},
      title        = {{T}hermodynamics of the reciprocal
                      {N}a{C}l-{KC}l-{N}a{OH}$_{3}$-{KNO}$_{3}$ system},
      journal      = {Calphad},
      volume       = {53},
      issn         = {0364-5916},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2016-04331},
      pages        = {97-104},
      year         = {2016},
      abstract     = {Thermodynamic properties of the reciprocal
                      NaCl–KCl–NaNO3–KNO3 system are of interest for
                      selecting compositions, which can be used as phase change
                      materials in thermal energy storage. In the presented work
                      two mixtures 7.5KCl–92.5NaNO3 and 12.5NaCl–87.5KNO3 on
                      the diagonal sections of the reciprocal system with the
                      liquidus temperatures of 549 K and 561 K, respectively were
                      studied by DSC and DROP calorimetry. The heat capacities and
                      the enthalpy increments of the solid and the liquid phases
                      were obtained for both mixtures (∆H549 K=9.5 kJ/mol,
                      ∆H514–549 K=16.9 kJ/mol, ∆H519–561 K=17.0 kJ/mol).
                      The combination of these results allows the calculation of
                      the phase transition enthalpies. DROP-calorimeter was used
                      in a mode of slow heating rate (0.5 K/min) thermal analysis,
                      where the DROP-calorimetric detector was applied for the
                      direct determination of phase transition enthalpies. The
                      thermodynamic properties were calculated using our own
                      dataset of the reciprocal system. The analysis of our
                      experimental and calculated results of enthalpy increments
                      and heat capacities has confirmed that our dataset can be
                      used for prediction of thermodynamic properties of the full
                      reciprocal system. Based on this conclusion three additional
                      compositions 50NaNO3–5.5KCl–44.5KNO3,
                      28NaNO3–12.4KCl–59.6KNO3 and
                      13.1NaNO3–11.2KCl–75.7KNO3 of the system with liquidus
                      temperatures at 481 K, 510 K, and 549 K were suggested as
                      potential phase change materials (∆H481 K=9.8 kJ/mol,
                      ∆H496–510 K=12.7 kJ/mol and ∆H510–549 K=15.8
                      kJ/mol).},
      cin          = {IEK-2},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {111 - Efficient and Flexible Power Plants (POF3-111)},
      pid          = {G:(DE-HGF)POF3-111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000377315100012},
      doi          = {10.1016/j.calphad.2016.04.001},
      url          = {https://juser.fz-juelich.de/record/817663},
}