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

Journal Article · Fri Aug 01 00:00:00 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), Vol. 22:3
• Country of Publication: United States
• Language: English

Related Subjects

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