Combined Thermal Expansion and Hydrolytic Stability Study of Lanthanide Vanadates LnVO4 and CaLnZr(VO4)3 (Ln = La, Nd, Sm, Eu, Gd, Dy, Yb) with Zircon and Monazite Structures

The paper presents the investigation of ordinary and ternary vanadates with zircon and monazite structures. Vanadates LnVO4 and CaLnZr(VO4)3 , where (Ln = La, Nd, Sm, Eu, Gd, Dy, Yb) and solid solution La0.3Nd0.5Sm0.1Eu0.1VO4, were prepared by precipitation reaction. Bulk ceramic samples were obtain...

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Bibliographic Details
Published in:arXiv.org 2023-12
Main Authors: Koryttseva, A K, Orlova, A I, Litonova, N S, Nokhrin, A V, Boldin, M S, Murashov, A A, Fukina, D G, Atopshev, A A, Smetanina, K E, Beskrovnyi, A I, Turchenko, V A, Tabachkova, N Y
Format: Article
Language:English
Subjects:
Ceramics
Chemical precipitation
Dysprosium
Gadolinium
Lanthanum
Monazite
Samarium
Sintering (powder metallurgy)
Solid solutions
Spark plasma sintering
Stability
Thermal expansion
Vanadates
Ytterbium
Zircon
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Summary:The paper presents the investigation of ordinary and ternary vanadates with zircon and monazite structures. Vanadates LnVO4 and CaLnZr(VO4)3 , where (Ln = La, Nd, Sm, Eu, Gd, Dy, Yb) and solid solution La0.3Nd0.5Sm0.1Eu0.1VO4, were prepared by precipitation reaction. Bulk ceramic samples were obtained from powders by Spark Plasma Sintering (SPS). The powders and ceramics were examined with several physicochemical methods. The coefficients of thermal expansion at 900{\deg}C were determined. The hydrolytic stability of ceramic materials was studied. The peculiarities of high-rate SPS of powders of ordinary and ternary vanadates were analyzed.
ISSN:2331-8422