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Phase formation in the Ag3PO4-ScPO4 quasi-binary system |
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| Authors: | L. N. Komissarova O. I. Solov’ev D. A. Rusakov M. A. Strelkov A. A. Filaretov |
| Affiliation: | 1. Chemical Faculty, Lomonosov Moscow State University, Moscow, Russia 2. Faculty of Materials Science, Lomonosov Moscow State University, Moscow, Russia 3. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow, Russia |
| Abstract: | The phase formation in the subsolidus region of the Ag3PO4-ScPO4 quasi-binary system was studied by X-ray powder diffraction and differential thermal analyses throughout the range of concentration ratios of the initial components at an interval of 10 mol % within the temperature range 20–1000°C in air at atmospheric pressure. A T-x section was constructed. The formation of the binary phosphate Ag3Sc2(PO4)3 melting incongruently at 1300 ± 5°C was detected. The composition of an eutectic (with the melting point 900 ± 5°C) is between those of the compounds Ag3PO4 and Ag3Sc2(PO4)3. |
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