Effect of substitution of ions in sodium niobate on the Curie temperature of the solid solutions formed

Journal Article · Fri Aug 01 04:00:00 EDT 1986 · Inorg. Mater. (Engl. Transl.); (United States)

OSTI ID:6954817

Lutsevich, A B; Isupov, V A; Isupova, E N; Urban, T P

The effect of the substitution of atoms on the Curie temperature of the solid solutions NaNb /SUB 1-x/ V /SUB x/ O/sub 3/ was investigated. An x-ray diffraction study and the determination of the dielectric properties of the polycrystalline samples showed that the solid solutions are formed in a very narrow concentration interval not exceeding 4 mole % NaVO/sub 3/. When Nb/sup 5 +/ ions are replaced with V/sup 5 +/ ions the Curie temperature increases. This is associated with the increase in the total ionic polarizability owing to the high ionic polarizability of the V/sup 5 +/ ion in the oxygen octahedron.

• Research Organization: Institute of Solid-State and Semiconductor Physics, Academy of Sciences of the Belorussian SSR
• OSTI ID: 6954817
• Journal Information: Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 22:3; ISSN INOMA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
ANTIFERROELECTRIC MATERIALS
CERAMICS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTALS
CURIE POINT
DIELECTRIC MATERIALS
DIFFRACTION
DISPERSIONS
ELEMENTS
ION IMPLANTATION
IONIC CRYSTALS
LATTICE PARAMETERS
MATERIALS
METALLURGICAL EFFECTS
METALS
MIXTURES
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
SCATTERING
SODIUM COMPOUNDS
SODIUM OXIDES
SOLID SOLUTIONS
SOLUTIONS
TANTALUM
TANTALUM COMPOUNDS
TANTALUM OXIDES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
VANADIUM
VANADIUM COMPOUNDS
VANADIUM OXIDES
X-RAY DIFFRACTION