Preparation of strontium barium niobate by sol-gel method
- Dept. of Applied Chemistry, School of Engineering, Nagoya Univ., Nagoya 464-01 (JP)
This paper reports on crack-free SBN (Sr{sub x}Ba{sub 1{minus}x}Nb{sub 2}O{sub 6}) thin films that have been prepared by a sol-gel method with metal alkoxides. A homogeneous and stable precursor solution was obtained from Sr and Ba metal and Nb(OEt){sub 5} in ethanol with a key additive of ethoxyethanol. SBN (where x = 0.5) powder crystallized to orthorhombic phase at 700{degrees}C, and then transformed completely to tetragonal phase at 1200{degrees}C. The formation of tetragonal SBN was observed on sapphire (R) substrates at 700{degrees}C, whereas the tetragonal phase began to appear in the powders at 1000{degrees}C. SBN films with highly preferred orientation were successfully synthesized on MgO (100) substrates at 670{degrees}C.
- OSTI ID:
- 7234563
- Journal Information:
- Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 75:6; ISSN JACTA; ISSN 0002-7820
- Country of Publication:
- United States
- Language:
- English
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ALKOXIDES
CHEMICAL PREPARATION
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FABRICATION
FILMS
GRAIN ORIENTATION
MICROSTRUCTURE
NIOBATES
NIOBIUM COMPOUNDS
ORIENTATION
ORTHORHOMBIC LATTICES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POWDERS
PRECURSOR
REFRACTORY METAL COMPOUNDS
SOL-GEL PROCESS
STRONTIUM COMPOUNDS
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SYNTHESIS
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS