The phase diagram of the system Na2SO4 - CaSO4 |
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| Affiliation: | 1. Institut für Anorg. Chemie, TU Bergakademie Freiberg, Leipziger Str. 29, D-09596 Freiberg, Germany;2. Institut für Phys. Chemie, TU Bergakademie Freiberg, Leipziger Str. 29, D-09596 Freiberg, Germany;1. School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;2. School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;1. Institute of Physics AS CR, v.v.i., Na Slovance 1999/2, 182 21 Prague 8, Czech Republic;2. Institute of Inorganic Chemistry AS CR, v.v.i., Husinec-Řež 1001, 25068 Řež, Czech Republic;1. Wihuri Physical Laboratory, Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland;2. Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto, Finland;1. Laboratoire de la matière condensée et des nanosciences, Université de Monastir 5019, Tunisia;2. Laboratoire de recherches en énergie et matière pour les développements des sciences nucleaires, CNSTN, Sidi Thabet 2020, Tunisia;3. Institut Néel, CNRS et Université Joseph Fourier, B.P. 166, 38042 Grenoble, France |
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| Abstract: | Quenching of Na2SO4 - CaSO4 melts down to room temperature results in different forms of metastable solid solutions dependent on the CaSO4 content. The transformation of these solid solutions into stable phases were investigated after various times and temperatures by X-ray powder diffraction and thermal analyses. An equilibrium phase diagram is derived, which is in accordance with all experimental facts. |
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