- PII
- 10.31857/S0002337X23060106-1
- DOI
- 10.31857/S0002337X23060106
- Publication type
- Status
- Published
- Authors
- Volume/ Edition
- Volume 59 / Issue number 6
- Pages
- 646-653
- Abstract
- Using coprecipitation, we have synthesized LnVO4 (simple) and CaLnZr(VO4)3 (Ln = Nd, Sm, Eu, Gd, Dy, Yb) (ternary) lanthanide orthovanadates; a La0.3Nd0.5Sm0.1Eu0.1VO4 solid solution, modeling the composition of the lanthanides in radioactive waste (all crystallizing in the zircon structure, sp. gr. I41/amd); and LaVO4, crystallizing in the monazite structure. Their unit-cell parameters have been shown to increase systematically with increasing lanthanide ionic radius. Their mid- and far-IR vibrational spectra suggest that their symmetry is lower than that of classical zircon. The synthesized compounds are stable up to 900°C. Their average thermal expansion coefficients lie in the range (6–11) × 10–6 K–1.
- Keywords
- лантаноиды ванадаты циркон
- Date of publication
- 14.09.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 3
References
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