Mixed-layer bismuth titanate niobate
Journal Article
·
· Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:7008512
Bismuth titanate niobate with mixed-layer structure Bi/sub 7/Ti/sub 4/NbO/sub 21/ is a ferroelectric, probable Curie point 870/sup 0/C. The ceramic Bi/sub 7/Ti/sub 4/NbO/sub 21/ has a high piezoelectric modulus. We examined the electrophysical parameters on polycrystalline specimens made by the usual ceramic technology. The density of BTN was determined by the weighing method and attains about 91% of the theoretical; the porosity (about 9%) is due to closed pores. The microstructure consists of elongated grains characteristic of these compounds. The shape of the crystal is related to the cell symmetry, so one takes these grains as having the shape of a tetragonal prism, with the base a distorted square.
- Research Organization:
- A. J. Pelse Riga Polytechnic Institute (USSR)
- OSTI ID:
- 7008512
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 23:9; ISSN INOMA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
BISMUTH COMPOUNDS
BISMUTH OXIDES
CERAMICS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL STRUCTURE
CURIE POINT
DIFFERENTIAL THERMAL ANALYSIS
DIFFRACTION
ELECTRICAL PROPERTIES
ELECTRICITY
FERROELECTRIC MATERIALS
LATTICE PARAMETERS
MICROSTRUCTURE
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
PIEZOELECTRICITY
REFRACTORY METAL COMPOUNDS
SCATTERING
SYNTHESIS
THERMAL ANALYSIS
THERMODYNAMIC PROPERTIES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
BISMUTH COMPOUNDS
BISMUTH OXIDES
CERAMICS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL STRUCTURE
CURIE POINT
DIFFERENTIAL THERMAL ANALYSIS
DIFFRACTION
ELECTRICAL PROPERTIES
ELECTRICITY
FERROELECTRIC MATERIALS
LATTICE PARAMETERS
MICROSTRUCTURE
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
PIEZOELECTRICITY
REFRACTORY METAL COMPOUNDS
SCATTERING
SYNTHESIS
THERMAL ANALYSIS
THERMODYNAMIC PROPERTIES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION