Low‐temperature phase formation in the SrF 2 –LaF 3 system

Phase formation in the SrF 2 –LaF 3 system was studied at temperatures ranging from 300°C to 450°C using nitrate flux. The solubility of LaF 3 in SrF 2 decreases with decreasing temperature. The equilibrium width of the solid solution region Sr 1− x La x F 2+ x at 400°C, it is 44.6 ± 0.4 mol% LaF 3...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2021-06, Vol.104 (6), p.2836-2848
Main Authors: Fedorov, Pavel P., Alexandrov, Alexander A., Voronov, Valery V., Mayakova, Mariya N., Baranchikov, Alexander E., Ivanov, Vladimir K.
Format: Article
Language:English
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Summary:Phase formation in the SrF 2 –LaF 3 system was studied at temperatures ranging from 300°C to 450°C using nitrate flux. The solubility of LaF 3 in SrF 2 decreases with decreasing temperature. The equilibrium width of the solid solution region Sr 1− x La x F 2+ x at 400°C, it is 44.6 ± 0.4 mol% LaF 3 ( x  = 0.446), at 350°C — 38.3 ± 0.7 mol% LaF 3 ( x  = 0.383), and decreases almost to zero at 300°C.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.17666