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Relationship between ferroelectric properties and local structure of Pb1-xBaxZr0.40Ti0.60O3 ceramic materials studied by X-ray absorption and Raman spectroscopies
(2016-08-01)
This paper reports on the structural characterization of Pb1-xBaxZr0.40Ti0.60O3 (PBZT) ferroelectric ceramic compositions prepared by the conventional solid state reaction method. X-ray absorption spectroscopy (XAS) and ...
Modeling the dielectric response of lanthanum modified lead zirconate titanate ferroelectric ceramics-an approach to the phase transitions in relaxor ferroelectrics
(Iop Publishing Ltd, 2008-11-05)
The relaxor behavior of lanthanum modified lead zirconate titanate (PLZT) ferroelectric ceramics, for a La/Zr/Ti ratio of x/60/40, has been analyzed. An approximation to the dynamical behavior of the polar nano-regions ...
Modeling the dielectric response of lanthanum modified lead zirconate titanate ferroelectric ceramics-an approach to the phase transitions in relaxor ferroelectrics
(Iop Publishing Ltd, 2008-11-05)
The relaxor behavior of lanthanum modified lead zirconate titanate (PLZT) ferroelectric ceramics, for a La/Zr/Ti ratio of x/60/40, has been analyzed. An approximation to the dynamical behavior of the polar nano-regions ...
Investigation of nonlinear dielectric properties in Sr0.75Ba0.25Nb2O6 relaxor ferroelectric thin films
(American Institute of Physics (AIP), 2008-01-01)
The ac and dc driving fields dependence of the dielectric permittivity for the strontium barium niobate relaxor ferroelectric thin films has been investigated. The nonlinear dielectric properties were obtained by using the ...
Phase Transition Characteristics in A-Site La3+ Modified Bi-Layered Aurivillius-Type Structure SrBi2Nb2O9 Ferroelectric Ceramics
(Taylor & Francis Ltd, 2015-10-13)
The phase transition characteristics have been investigated in lanthanum modified bismuth layer structured SrBi2Nb2O9 (SBN) ferroelectric ceramics, obtained from the conventional sintering method. In particular, structural, ...
Eletrocerâmicas de BNBK dopadas com tântalo: processamento, fenomenologia e propriedades de armazenamento de energia
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Física - PPGFCâmpus São Carlos, 2019-03-29)
Global energy demand for high energy storage capability materials associated with the search for lead-free electroceramic materials with suitable properties for applications has become the major topic in functional materials ...
Study of potassium additive on the phase formation and ferroelectric properties of 0.9PMN-0.1PT ceramics
(Elsevier B.V., 2006-01-01)
A recent and innovative method to include Ti into the columbite precursor has permitted to synthesize 0.9PMN-0.1PT powders with high homogeneity. The present work describes this methodology, named modified columbite method, ...
Study of potassium additive on the phase formation and ferroelectric properties of 0.9PMN-0.1PT ceramics
(Elsevier B.V., 2006-01-01)
A recent and innovative method to include Ti into the columbite precursor has permitted to synthesize 0.9PMN-0.1PT powders with high homogeneity. The present work describes this methodology, named modified columbite method, ...
XANES measurements probing the local order and electronic structure of Pb1-xBaxZr0.40Ti0.60O3 ferroelectric materials
(Elsevier B.V., 2015-08-15)
In this study, the electronic and local structures of Pb1-xBaxZr0.40Ti0.60O3 ferroelectric ceramic samples were characterized using X-ray absorption near-edge structure (XANES) measurements. The analysis of XANES spectra ...
Caracterização ótica não-linear em cerâmicas ferroelétricas transparentes (CFT s) de PLZT: TR (TR = nd,Ho, Er, Tm e Yb)
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2009-10-02)
Lead titanate zirconate modified with lanthanum, or PLZT, is one the most ferroelectric compounds utilized in electronic devices, due to its versatility and low production costs in comparison with single-crystalline ...