Doping effect on the physical properties of bi-layered aurivillius-type structure SrBi2Nb2O9 ferroelectric ceramics: SrBi2Nb2O9 (SBN) aurivillius-type ferroelectric ceramics
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Data
2014-10-13
Autores
Reis, I. C.
Silva, A. C.
Guo, R.
Bhalla, A. S.
Guerra, J. D.S.
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Resumo
The doping effect on the structural, microstructural and dielectric properties of bismuth layer structured SrBi2Nb2O9(SBN) ferroelectric ceramics has been investigated. The samples were obtained from the solid state reaction sintering method. Particularly, the A-site cation substitution of Sr2+ by La3+ has been considered, taking into account the lanthanum concentration (x) up to 30 at.%. It has been found that the physical properties of the studied Sr1-3x/2LaxBi2Nb2O9(SLBN) system are strongly affected by the doping content. The characteristics of the phase transition were investigated from the dielectric response, performed in a wide temperature and frequency range.
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Aurivillius, ceramics, dielectric properties, ferroelectrics
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2014 Joint IEEE International Symposium on the Applications of Ferroelectric, International Workshop on Acoustic Transduction Materials and Devices and Workshop on Piezoresponse Force Microscopy, ISAF/IWATMD/PFM 2014.