0000000000342476

AUTHOR

D. Majda

showing 3 related works from this author

Differential scanning calorimetry investigation of phase transition in $BaZr_{x}Ti_{1-x}O_{3}$

2009

ABSTRACT Lead-free BaZrxTi1-xO3 (x = 0; 0.025; 0.125) ceramics have been obtained by a conventional method. A single-phase perovskite structure of the ceramics was identified by the X-ray diffraction method. EDS analysis, performed for the individual grains of the tested sample, showed a good homogeneous distribution of all elements throughout the grains. The thermal behaviour of BaZrxTi1-xO3 (x = 0; 0.025; 0.125) ceramics was studied using the Differential Scanning Calorimetry (DSC). Measurements showed the influence of Zr addition on the character of phase transition in the BaTiO3 structure. The results were compared with these ones obtained for pure BaTiO3.

Diffractionstructural propertiesPhase transitionMaterials scienceAnalytical chemistryDielectricCondensed Matter PhysicsHomogeneous distributionElectronic Optical and Magnetic MaterialsDSCDifferential scanning calorimetrybarium-zirconium titanate $BaZr_{x}Ti_{1-x}O_{3}$ (BZT)Control and Systems Engineeringdielectric propertiesvisual_artThermalMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumCeramicElectrical and Electronic Engineering
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Structural, magnetic, dielectric and mechanical properties of (Ba,Sr)MnO3 ceramics

2017

The authors acknowledge the CPU time allocation at Academic Computer Centre CYFRONET AGH in Cracow. This work was supported in part by PL-Grid Infrastructure and the European Regional Development Fund under the Infrastructure and Environment Programme [grant number UDA-POIS.13.01-023/09-00]. The research was partially carried out with the equipment purchased thanks to the financial support of the European Regional Development Fund in the framework of the Polish Innovation Economy Operational Program (contract no. POIG.02.01.00-12-023/08). L. Vasylechko acknowledges partial support of the Ukrainian Ministry of Education and Sciences under the Projects ?RZE?, ?KMON?, and ICDD Grant-in-Aid pro…

Phase transitionMaterials scienceMultiferroicsEnthalpyAnalytical chemistryAb initioFOS: Physical sciences02 engineering and technologyDielectricActivation energy01 natural sciences7. Clean energyThermal expansionDSCsymbols.namesakeNuclear magnetic resonanceManganites0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)Materials Chemistry:NATURAL SCIENCES:Physics [Research Subject Categories]Ceramic010306 general physicsArrhenius equationCondensed Matter - Materials ScienceCondensed Matter - Mesoscale and Nanoscale PhysicsSIESTAMaterials Science (cond-mat.mtrl-sci)021001 nanoscience & nanotechnologyFTIRvisual_artCeramics and Compositessymbolsvisual_art.visual_art_medium0210 nano-technologyJournal of the European Ceramic Society
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Effect of cobalt doping on the dielectric response of $B_{0.95}Pb_{0.05}TiO_3$ ceramics

2013

Dielectric response of Ba 0.95 Pb 0.05 TiO 3 ceramics doped with 0.1 and 1 wt.% of Co 2 O 3 , synthesized by conven- tional high-temperature method, wa s studied in wide temperature and frequency range. The temperature dependences of the real and the imaginary parts of dielectric permittivity of the ceramics were compared with those of BaTiO 3 and Ba 0.95 Pb 0.05 TiO 3. The addition of Co 3+ ions results in a broadening of dielectric anom- alies related to the transition to p araelectric cubic phase, and the structural transition between the tetragonal and the orthorhombic phases. At low temperatures (125 – 200 K) the dielectric absorp- tion of Co-doped Ba 0.95 Pb 0.05 TiO 3 ceramics was fo…

Dielectric absorptionMaterials scienceCondensed matter physics$B_{0.95}Pb_{0.05}TiO_3$Dopingdeviation from the Curie-WeisslawDielectricCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsIonco-dopingTetragonal crystal systemDipoleMechanics of Materialsdielectric propertiesvisual_artMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumOrthorhombic crystal systemCeramicElectrical and Electronic Engineering
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