0000000000398204

AUTHOR

Otto Freimanis

showing 2 related works from this author

Impact of Thermal Treatment on the Surface of Na0.5Bi0.5TiO3-Based Ceramics

2021

This research was funded by the European Regional Development Fund, grant number 1.1.1.2/VIAA/3/19/558. The Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme, grant number 739508.

CeramicsMaterials scienceGeneral Chemical EngineeringmicrostructureEvaporation02 engineering and technologyThermal treatmentceramicsSodium bismuth titanate010402 general chemistry01 natural sciencesInorganic Chemistrychemistry.chemical_compoundEtchingThermaletchingGeneral Materials ScienceThermal treatmentCeramicComposite materialMicrostructureCrystallography021001 nanoscience & nanotechnologyCondensed Matter PhysicsMicrostructure0104 chemical sciencesSodium bismuth titanatechemistryEtchingQD901-999visual_artParticle-size distributionvisual_art.visual_art_mediumsodium bismuth titanate:NATURAL SCIENCES [Research Subject Categories]0210 nano-technologythermal treatmentCrystals
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Influence of sintering temperature on microstructure of Na0.5Bi0.5TiO3 ceramics

2021

Abstract Na0.5Bi0.5TiO3 (NBT)-based compositions are among the most promising lead-free ferroelectrics. Although studies of modification of NBT-based compositions’ properties are a hot topic, there has been very little attention paid to their characterization from the standpoint of ceramics and the process of producing them. Here, we report on comprehensive analysis of the influence of sintering temperature across a wide temperature range (1020–1240 °C) on the complete microstructure and chemical content of NBT ceramics produced by solid state sintering, which is dominating in producing of NBT ceramics. Thorough attention is paid to the grain size distribution, porosity, and inhomogeneity. …

Materials scienceMechanical EngineeringMetals and AlloysSintering02 engineering and technologyAtmospheric temperature range010402 general chemistry021001 nanoscience & nanotechnologyMicrostructure01 natural sciencesGrain size0104 chemical sciencesCharacterization (materials science)Mechanics of Materialsvisual_artParticle-size distributionMaterials Chemistryvisual_art.visual_art_mediumCeramicComposite material0210 nano-technologyPorosityJournal of Alloys and Compounds
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