Phase equilibria and isomorphism in the LiVWO6-NaVWO6 system |
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Authors: | A. V. Knyazev N. G. Chernorukov N. Yu. Kuznetsov |
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Affiliation: | 1.National Research Institute,Nizhni Novgorod State University,Nizhni Novgorod,Russia |
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Abstract: | Compounds of composition Li x Na1 − x VWO6 (0 ≤ x ≤ 1), which are synthetic analogues of brannerite-type minerals, were produced for the first time by solid-state synthesis at high temperatures. The structure of the compounds and their unlimited miscibility in the solid phase in the LiVWO6-NaVWO6 binary system were determined by X-ray diffraction. The phase equilibrium diagram was studied by differential thermal analysis together with thermodynamic modeling. It was found that the system under investigation is described by the regular solid solutions model. |
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