Phase diagrams of the NaF-RF3 (R = La, Ce, Pr, Nd, Sm) systems

Authors
Fedorov, PP Buchinskaya, II Bondareva, OS Bystrova, AA Vistin', LL Ershov, DA Ivanov, SP Stasyuk, VA Sobolev, BP
Citation
Pp. Fedorov et al., Phase diagrams of the NaF-RF3 (R = La, Ce, Pr, Nd, Sm) systems, RUSS J IN C, 45(6), 2000, pp. 949-952
Citations number
24
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
00360236 → ACNP
Volume
45
Issue
6
Year of publication
2000
Pages
949 - 952
Database
ISI
SICI code
0036-0236(200006)45:6<949:PDOTN(>2.0.ZU;2-I
Abstract
Differential thermal analysis and X-ray powder diffraction were used to stu dy phase diagrams for mixtures of NaF with La, Ce, Pr, Nd, and Sm trifluori des. Incongruently melting intermediate phases with the gagarinite structur e and nonstoichiometric fluorite phases Na0.5-xR0.5+xF2+2x for R = Pr, Nd, or Sm, which are stable within narrow temperature ranges, were proven to ex ist. Solid solutions R1-yNayF3-2y with the tysonite structure, based on RF3 , were discovered.