X-ray diffraction study of the NaF-LiF-LaF3 eutectic in the liquid and solid states

The NaF-LiF-LaF 3 eutectic has been studied by X-ray diffraction in the liquid and solid states. The results demonstrate that, below the melting point of the eutectic, the composition studied is based on crystalline NaLaF 4 , LiF, and NaF. A key role in determining the melt structure is played by an...

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Bibliographic Details
Published in:Inorganic materials 2012-04, Vol.48 (4), p.416-422
Main Authors: Sokol’skii, V. E., Roik, A. S., Kazimirov, V. P., Faidyuk, N. V., Savchuk, R. N.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
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Summary:The NaF-LiF-LaF 3 eutectic has been studied by X-ray diffraction in the liquid and solid states. The results demonstrate that, below the melting point of the eutectic, the composition studied is based on crystalline NaLaF 4 , LiF, and NaF. A key role in determining the melt structure is played by an ordered arrangement of the lanthanum cations. The fluorine atoms around the lanthanum cations form a distorted Bernal trigonal prism.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168512030156