Doping effect on the physical properties of bi-layered aurivillius-type structure SrBi2Nb2O9 ferroelectric ceramics: SrBi2Nb2O9 (SBN) aurivillius-type ferroelectric ceramics

Actas de congresos

Fecha

2014-10-13

Registro en:

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.

http://hdl.handle.net/11449/220252

10.1109/ISAF.2014.6922982

2-s2.0-84909998842

https://repositorioslatinoamericanos.uchile.cl/handle/2250/5400381

Autor

Universidade Estadual

University of Texas at San Antonio

Institución

Universidade Estadual Paulista (Brasil)

Resumen

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.

Materias

Aurivillius

ceramics

dielectric properties

ferroelectrics

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