0000000000383148

AUTHOR

W. Suchanicz

showing 3 related works from this author

STRONTIUM CONCENTRATION DEPENDENCE OF SELECTED STRUCTURAL AND MECHANICAL PROPERTIES OF POLYCRYSTALLINE Ba1−XSrXTiO3

2009

ABSTRACT Microstructure and material constants such as Young modulus E, shear modulus G, Poisson ratioν of polycrystalline ferroelectric materials Ba1-xSrxTiO3 for 0≤x≤0.4 were investigated to determine their dependence on strontium concentration. The performed investigations showed that the material is chemically homogeneous. It was found that the strontium concentration had no significant influence on the grain size. The highest value of Young's modulus is observed for Ba0.6Sr0.4TiO3 sample. The performed investigations of mechanical properties made it possible to evaluate the usability of this material for manufacturing transducers and sensors which could work under load.

StrontiumMaterials scienceModulusMineralogychemistry.chemical_elementYoung's modulusCondensed Matter PhysicsMicrostructureFerroelectricityGrain sizeElectronic Optical and Magnetic MaterialsShear modulussymbols.namesakechemistryControl and Systems EngineeringMaterials ChemistryCeramics and CompositessymbolsCrystalliteElectrical and Electronic EngineeringComposite materialIntegrated Ferroelectrics
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Elastic Properties of Barium Zirconate Titanate Ceramics

2011

In the paper the influence of zirconium admixture on the structure and material constants of polycrystalline ferroelectric materials BaZrxTi1-xO3 (BZT) was examined. The barium zirconate titanate samples were prepared by a conventional solid state reaction method. A single phase with perovskite structure of the samples, was identified by an X-Ray diffraction technique at room temperature. The performed EDS study revealed that the samples were perfectly sintered and the material was chemically homogeneous. The dependence of shear modulus G on sample composition is similar to the respective dependence of Young's modulus E, whereas the Poisson's ratio ν decreases with the increase in zirconium…

DiffractionZirconiumMaterials sciencechemistry.chemical_elementModulusMineralogyCondensed Matter PhysicsFerroelectricityTitanateElectronic Optical and Magnetic MaterialsShear moduluschemistryControl and Systems Engineeringvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCrystalliteCeramicElectrical and Electronic EngineeringComposite materialIntegrated Ferroelectrics
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INFLUENCE OF ZIRCONIUM ON STRUCTURAL, MICROSTRUCTURAL AND FERROELECTRIC PROPERTIES OF BaZr0.20Ti0.80O3 CERAMIC

2009

ABSTRACT Barium zirconium titanate BaZrxTi1-xO3 ceramics have been obtained by conventional method. The X-ray diffraction analysis showed that the BaZr0.20Ti0.80O3 crystallizes in the cubic structure. The lattice parameter a increases with temperature, at temperature ∼308 K a small deviation is observed. The performed EDS study revealed that the samples were perfectly sintered and that the material was chemically homogeneous. It contains a little glassy phase and the grains are well shaped. The zirconium content (20 mol%) in the examined solid solution caused downward shift of the temperature T m . The increase of the achieved permittivity values ϵm was observed as well.

PermittivityZirconiumMaterials scienceAnalytical chemistrychemistry.chemical_elementBariumCondensed Matter PhysicsFerroelectricityElectronic Optical and Magnetic MaterialsCrystallographyLattice constantchemistryControl and Systems Engineeringvisual_artPhase (matter)Materials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCeramicElectrical and Electronic EngineeringSolid solutionIntegrated Ferroelectrics
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