Phase transition and piezoelectric property of (Bi0.5Na0.5)0.94Ba0.06ZryTi1-yO3(y=0-0.04) ceramics
- 1. Department of Physics, Tunghai University, Taichung, 407 Taiwan (China)
- 2. Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, 106 Taiwan (China)
- 3. Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, 106 Taiwan (China)
Description
The ceramics with the composition of (Bi0.5Na0.5)0.94Ba0.06ZryTi1-yO3 (BNBZ100yT, in which y=0,0.01,0.02,0.04) were prepared successfully by the solid state reaction method. X-ray diffraction studies revealed the perovskite structure in BNBZ100yT ceramics sintered at 1170 deg. C for 2 h in air. The relative densities of the sintered ceramics were around 97%-99%. The temperature dependent dielectric properties of BNB6T and BNB6Z4T ceramics showed their relaxor-like behaviors. Decreases in remnant polarization, coercive field, and disappearance of piezoelectric properties were found by the substitution of 2 and 4 mol % Zr4+ for Ti4+ in these ceramics. Electron diffraction patterns taken in a transmission electron microscope demonstrated the existence of cubic crystalline phase in the BNB6Z4T ceramics leading to the disappearance of piezoelectric property. Decrease in grain size was also observed with the substitution of Zr4+ for Ti4+ in BNB6T ceramics
Additional details
Identifiers
- DOI
- 10.1063/1.2803725;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 102
- Journal Issue
- 9
- Journal Page Range
- p. 094102-094102.5
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39079397
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AIR; BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CERAMICS; DIELECTRIC PROPERTIES; ELECTRON DIFFRACTION; FERROELECTRIC MATERIALS; GRAIN SIZE; PHASE TRANSFORMATIONS; PIEZOELECTRICITY; SINTERING; SODIUM COMPOUNDS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 1000-4000 K; TITANATES; TITANIUM IONS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; ZIRCONATES; ZIRCONIUM IONS
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; COHERENT SCATTERING; DIELECTRIC MATERIALS; DIFFRACTION; ELECTRICAL PROPERTIES; ELECTRICITY; ELECTRON MICROSCOPY; FABRICATION; FLUIDS; GASES; IONS; MATERIALS; MICROSCOPY; MICROSTRUCTURE; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; SIZE; TEMPERATURE RANGE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS
Optional Information
- Notes
- (c) 2007 American Institute of Physics