0000000000427600

AUTHOR

Dmitri V. Kulikov

showing 3 related works from this author

Computational study of the influence of oxygen vacancies on the polarization in irradiated and annealed PLZT ceramics

2002

A physical model for the oxygen defect evolution in PLZT ceramics under neutron irradiation and annealing is proposed. The influence of the defect system on the polarization of these materials has been investigated. The influence of the La content on the material structure and the oxygen defects has been taken into account. Satisfactory agreement between the theoretically estimated oxygen defect concentration after irradiation and annealing and the experimentally determined polarization has been obtained.

Materials scienceCondensed matter physicsAnnealing (metallurgy)chemistry.chemical_elementOxygenCrystallographychemistryMaterial structurevisual_artvisual_art.visual_art_mediumIrradiationCeramicPhysics::Chemical PhysicsNeutron irradiationSPIE Proceedings
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NEUTRON IRRADIATION EFFECTS IN PZ and PZT THIN FILMS

2005

ABSTRACT Neutron irradiation effects on highly oriented antiferroelectric PbZrO3 (PZ) and ferroelectric PbZr0.53Ti0.47O3 (PZT) thin films are investigated in view of their possible application as a temperature sensitive element in a new bolometer system for fusion devices like ITER. All investigated thin films were prepared by a sol-gel technique and by pulsed laser deposition (PLD) respectively. The dielectric properties were investigated in a frequency range from 1 to 250 kHz and at temperatures up to 400°C, prior to and after irradiation to a neutron fluence of 3 * 1022 m−2 (E > 0.1 MeV). After irradiation, the films were anneald in several steps up to 400°C in order to remove the radiat…

Materials sciencebusiness.industryBolometerHeterojunctionDielectricCondensed Matter PhysicsFerroelectricityElectronic Optical and Magnetic Materialslaw.inventionPulsed laser depositionControl and Systems EngineeringlawNeutron fluxMaterials ChemistryCeramics and CompositesOptoelectronicsIrradiationElectrical and Electronic EngineeringThin filmbusinessIntegrated Ferroelectrics
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Computer simulation of ferroelectric property changes in PLZT ceramics under neutron irradiation

2001

The response of ferroelectric materials to high energy irradiation is of great interest because of their possible application in radiation environments such as thermonuclear reactors. In the present work a physical model for the defect evolution in PLZT ceramics under neutron irradiation and annealing is proposed. The influence of the defect system on the ferroelectric properties of these materials has been investigated. Satisfactory agreement between the theoretical estimated oxygen defect concentration after irradiation and annealing and the experimentally determined polarization has been obtained.

Thermonuclear fusionMaterials sciencebusiness.industryAnnealing (metallurgy)RadiationFerroelectricityCondensed Matter::Materials Sciencevisual_artvisual_art.visual_art_mediumOptoelectronicsCeramicIrradiationbusinessNeutron irradiationHigh energy irradiationFourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering
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