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High strain response and improved electrical properties of lead-free (Mn,Sb)-modified (Bi0.5Na0.5)TiO3-BaTiO3 ceramics
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Liu, Yaxuan. High strain response and improved electrical properties of lead-free (Mn,Sb)-modified (Bi0.5Na0.5)TiO3-BaTiO3 ceramics. Retrieved from https://doi.org/doi:10.7282/t3-5tbx-vd06

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TitleHigh strain response and improved electrical properties of lead-free (Mn,Sb)-modified (Bi0.5Na0.5)TiO3-BaTiO3 ceramics
NameLiu, Yaxuan (author); Safari, Ahmad (chair); Safari, Ahmad AS (member); Klein, Lisa LK (member); Akdogan, E. Koray EKA (member); Rutgers University; School of Graduate Studies
Date Created2022
Other Date2022-05 (degree)
SubjectMaterials Science, BNT-BT, Energy harvester, Permittivity, Piezoelectric
DescriptionLead-free piezoelectric ceramics (Bi0.5Na0.5)0.94Ba0.06Ti1-x(Mn0.5Sb0.5)xO3 were prepared by a conventional solid-state reaction method and the phase, microstructure, dielectric, ferroelectric, piezoelectric properties, and energy storage efficiency were systematically investigated. The polarization-electric field hysteresis loops indicated a phase transition from ferroelectric to relaxor ferroelectric phase with increasing Mn and Sb content. A maximum unipolar strain of 0.46% and normalized effective d33* of 920 pm/V were obtained under an electric field of 50 KV/cm at room temperature for x=0.020. A highest piezoelectric coefficient d33 of 148 pC/N was observed at 100 Hz for x=0.015. A high energy density of 0.36 J/cm3 and energy efficiency of 49% were attained for x=0.020 and x=0.025, respectively. The improvement of electric properties and high stain response was attributed to the coexistence of ferroelectric and relaxor ferroelectric phase. The enhancements in strain would be suitable for lead-free piezoelectric actuator applications.
NoteM.S.
NoteIncludes bibliographical references
Genretheses
Persistent URLhttps://doi.org/doi:10.7282/t3-5tbx-vd06
LanguageEnglish
CollectionSchool of Graduate Studies Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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