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Phase diagram of the system CaF2-GdF3 |
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| Authors: | Fedorov P. P. Sizganov Yu. G. Sobolev B. P. Shvanner M. |
| Affiliation: | 1.Institute of Crystallography, Academy of Sciences of the USSR, Moscow, USSR ;2.Physical Institute, Academy of Sciences of Slovakia, Bratislava, ?SSR ; |
| Abstract: | A phase diagram of the system CaF2-GdF3 was studied by thermal and X-ray analysis. Two wide domains of solid solutions based on CaF2 and a high-temperature modification of α-GdF3 (LaF3-structural type) are present in this system. Two maxima were found on the melting curves of the Ca1?xGdxF2+x and α-(Gd1?yCayF3?y solid solutions, at 1428 ± 10? (5 mole % GdF3) and 1282 ± 5? (85 mole % GdF3), respectively. The coordinates of the eutectic are 60 mole % GdF3 and 1233 ± 5?. |
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