Materials Research Express · 2018 · 18 citations · 30 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsCeramicsElectronic MaterialsCeramic CompositesDielectricsElectrical Properties Of CeramicsFerroelectric MaterialsPiezoelectric CeramicsPiezoelectric MaterialsBarium TitanateBarium Titanate CeramicsCeramic DielectricsDielectric ConstantElectrical PropertiesElectrical Properties AnalysisPiezoelectric CompositesPiezoelectric Properties
Researches on barium titanate ceramics have been prosperous since its lead-free feature. In this paper, we classified the BaTiO3 ceramics into four different groups to study the effect of grain size on the electrical properties. According to the analysis of element, size distribution, conductivity, piezoelectric, and dielectric properties, we found that group #3, compounded distribution where the majority is small size, exhibited the best performance among four groups. The dielectric constant εr and piezoelectric strain constant d33 of BaTiO3/PVDF composites reached the maximum values which were 168.86 and 28pC/N, respectively, and dielectric loss tanδ maintained around 0.02.
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