0000000000364989

AUTHOR

Said Kazaoui

showing 2 related works from this author

High frequency dielectric relaxation in BaTio3derived materials

1992

Abstract A systematic study of the dielectric relaxation phenomenon has been carried out for ceramics with compositions derived from barium titanate in the frequency and temperature ranges 1 MHz–1 GHz and 250–500 K, respectively. Whatever the composition may be, a minimum of the relaxation frequency and a maximum of the dielectric dispersion appears at each phase transition temperature. The dipole-type relaxation is correlated to coherent displacements of the ions in the octahedron sites ordered either along chains or in 3D-lattice.

Materials scienceCondensed matter physicsDielectricCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsIonDielectric spectroscopyCondensed Matter::Materials Sciencechemistry.chemical_compoundNuclear magnetic resonancechemistryOctahedronLattice (order)visual_artBarium titanatevisual_art.visual_art_mediumCeramicCole–Cole equationFerroelectrics
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Dielectric relaxation in crystals and ceramics derived from BaTiO3

1992

Abstract A dielectric relaxation is reported in a crystal of BaTiO3 and in ceramics with composition (Ba1-yCay)TiO3 (0≤y≤0.2) in the frequency and temperature ranges 106 to 109 Hz and 350 to 450 K, respectively. A minimum of the relaxation frequency occurs close to the ferroelectric Curie temperature. The relaxation is of dipolar-type.

Materials scienceCondensed matter physicsRelaxation frequencyDielectricCondensed Matter PhysicsFerroelectricityElectronic Optical and Magnetic MaterialsCrystalvisual_artvisual_art.visual_art_mediumRelaxation (physics)Curie temperatureCeramicCole–Cole equationFerroelectrics
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