Title :
Doping effect on the physical properties of bi-layered aurivillius-type structure SrBi2Nb2O9 ferroelectric ceramics: SrBi2Nb2O9 (SBN) aurivillius-type ferroelectric ceramics
Author :
Reis, C. ; Silva, Abraham Castellanos ; Guo, Renjia ; Bhalla, A.S. ; Guerra, J.D.S.
Author_Institution :
Dept. de Fis. e Quim., Univ. Estadual, Ilha Solteira, Brazil
Abstract :
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.
Keywords :
bismuth compounds; crystal microstructure; doping; ferroelectric ceramics; ferroelectric transitions; lanthanum compounds; sintering; strontium compounds; A-site cation substitution; Sr1-1.5xLaxBi2Nb2O9; bi-layered Aurivillius-type structure; bismuth layer structured ferroelectric ceramics; dielectric properties; dielectric response; doping effect; ferroelectric ceramics; microstructural properties; phase transition; physical properties; solid state reaction sintering method; structural properties; Bismuth; Ceramics; Dielectrics; Doping; Lanthanum; Permittivity; Temperature; Aurivillius; ceramics; dielectric properties; ferroelectrics;
Conference_Titel :
Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM), 2014 Joint IEEE International Symposium on the
Conference_Location :
State College, PA
DOI :
10.1109/ISAF.2014.6922982
