Now showing items 11-18 of 18
Effect of oxidizing atmosphere on ferroelectric and piezoelectric response of CaBi2Nb2O9 thin films
(Materials Chemistry and Physics, 2010-12-01) [Artigo]
Calcium bismuth niobate (CaBi2Nb2O9 CBNO) thin films were evaluated for use as lead-free piezoelectric in micro-electromechanical systems The films were grown by the polymeric precursor method on Pt/Ti/SiO2/Si (1 0 0) (Pt) ...
Microwave-hydrothermal synthesis of barium strontium titanate nanoparticles
(Journal of Alloys and Compounds, 2010-10-22) [Artigo]
Hydrothermal-microwave method (HTMW) was used to synthesize crystalline barium strontium titanate (Ba(0.8)Sr(0.2)TiO(3)) nanoparticles (BST) in the temperature range of 100-130 degrees C. The crystallization of BST with ...
Structural deformation monitored by vibrational properties and orbital modeling in (Pb,Sm)TiO3 systems
(Journal of Physics and Chemistry of Solids, 2010-01-01) [Artigo]
Pb1-xSmxTiO3 (PST) powders with x varying from 0 to 0.1 were obtained by the polymeric precursor method, a soft chemical route. The vibrational properties relating tetragonal to pseudo-cubic phase transition were studied ...
CaTiO3:Eu3+ obtained by microwave assisted hydrothermal method: A photoluminescent approach
(Optical Materials, 2010-07-01) [Artigo]
Structure and optical properties of [Ba1-xY2x/3](Zr0.25Ti0.75)O-3 powders
(Solid State Sciences, 2010-07-01) [Artigo]
[Ba1-xY2x/3](Zr0.25Ti0.75)O-3 powders with different yttrium concentrations (x = 0, 0.025 and 0.05) were prepared by solid state reaction. These powders were analyzed by X-ray diffraction (XRD). Fourier transform Raman ...
ZnO architectures synthesized by a microwave-assisted hydrothermal method and their photoluminescence properties
(Solid State Ionics, 2010-06-03) [Artigo]
Zinc oxide (ZnO) architectures were synthesized by an efficient Microwave-Assisted Hydrothermal (MAH) method using a cationic surfactant, cetyltrimethylammonium bromide (CTAB), as the structure-directing template. The ZnO ...
The effect of TiO(2) on the microstructural and electrical properties of low voltage varistor based on (Sn,Ti)O(2) ceramics
(Physica Status Solidi A: Applications and Materials Science, 2010-02-01) [Artigo]
SnO(2)-CoO-Nb(2)O(5) ceramics doped with TiO(2) have been prepared by a conventional oxide method which focuses its application on low voltage varistors. The dopant was added in 0.5 and 1.0% molar concentrations, and samples ...
Influence of degradation on the electrical conduction process in ZnO and SnO2-based varistors
(Journal of Applied Physics, 2010-10-01) [Artigo]
The conduction process during degradation, promoted by the application of fixed dc bias voltage at different temperatures (thermal steady states) and current pulses 8/20 mu s on ZnO and SnO2-based varistors, was studied ...