Effect of MnO2 addition on relaxor behavior and electrical properties of PMNST ferroelectric ceramics

Yong Li; Dawei Wang; Wenqiang Cao; Bin Li; Jie Yuan; Deqing Zhang; Shujun Zhang; Maosheng Cao

doi:10.1016/j.ceramint.2015.04.030

Effect of MnO₂ addition on relaxor behavior and electrical properties of PMNST ferroelectric ceramics

Yong Li, Dawei Wang, Wenqiang Cao, Bin Li, Jie Yuan, Deqing Zhang^*, Shujun Zhang, Maosheng Cao

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Abstract A novel ferroelectric system, 0.2Pb(Mg_1/3Nb_2/3)O₃-0.8Pb(Sn_0.46Ti_0.54)O₃ with MnO₂ addition (PMNST-Mn), was prepared. The dielectric, ferroelectric and piezoelectric properties were investigated. The results demonstrated that the addition of MnO₂ suppressed the dielectric relaxor behavior of PMNST. With the increase of MnO₂ addition, the diffuse phase transition (DPT) behavior weakened gradually. The addition of MnO₂ contributed to the decrease of the dielectric loss (tanδ) and the enhancement of ferroelectric polarization. The optimum ferroelectric and piezoelectric properties were obtained when the addition of MnO₂ is 0.75 mol%, and the remnant polarization (P_r) and mechanical quality factor (Q_m) were about 25% and 60% higher than those of PMNST, respectively. It was suggested that the formation of oxygen vacancies made the important contribution to suppressing relaxor behavior and improving the electrical properties of PMNST due to the substitution of Mn for B-site. This work provided a practicable strategy to tune electrical properties of ferroelectrics.

Original language	English
Article number	10437
Pages (from-to)	9647-9654
Number of pages	8
Journal	Ceramics International
Volume	41
Issue number	8
DOIs	https://doi.org/10.1016/j.ceramint.2015.04.030
Publication status	Published - 1 Sept 2015

Keywords

C. Dielectric properties
D. Perovskite
Ferroelectrics
Relaxor

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10.1016/j.ceramint.2015.04.030

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@article{2bdb3bc30fb6414fbe30ca31838257e9,

title = "Effect of MnO2 addition on relaxor behavior and electrical properties of PMNST ferroelectric ceramics",

abstract = "Abstract A novel ferroelectric system, 0.2Pb(Mg1/3Nb2/3)O3-0.8Pb(Sn0.46Ti0.54)O3 with MnO2 addition (PMNST-Mn), was prepared. The dielectric, ferroelectric and piezoelectric properties were investigated. The results demonstrated that the addition of MnO2 suppressed the dielectric relaxor behavior of PMNST. With the increase of MnO2 addition, the diffuse phase transition (DPT) behavior weakened gradually. The addition of MnO2 contributed to the decrease of the dielectric loss (tanδ) and the enhancement of ferroelectric polarization. The optimum ferroelectric and piezoelectric properties were obtained when the addition of MnO2 is 0.75 mol%, and the remnant polarization (Pr) and mechanical quality factor (Qm) were about 25% and 60% higher than those of PMNST, respectively. It was suggested that the formation of oxygen vacancies made the important contribution to suppressing relaxor behavior and improving the electrical properties of PMNST due to the substitution of Mn for B-site. This work provided a practicable strategy to tune electrical properties of ferroelectrics.",

keywords = "C. Dielectric properties, D. Perovskite, Ferroelectrics, Relaxor",

author = "Yong Li and Dawei Wang and Wenqiang Cao and Bin Li and Jie Yuan and Deqing Zhang and Shujun Zhang and Maosheng Cao",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd and Techna Group S.r.l.",

year = "2015",

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doi = "10.1016/j.ceramint.2015.04.030",

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T1 - Effect of MnO2 addition on relaxor behavior and electrical properties of PMNST ferroelectric ceramics

AU - Li, Yong

AU - Wang, Dawei

AU - Cao, Wenqiang

AU - Li, Bin

AU - Yuan, Jie

AU - Zhang, Deqing

AU - Zhang, Shujun

AU - Cao, Maosheng

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Abstract A novel ferroelectric system, 0.2Pb(Mg1/3Nb2/3)O3-0.8Pb(Sn0.46Ti0.54)O3 with MnO2 addition (PMNST-Mn), was prepared. The dielectric, ferroelectric and piezoelectric properties were investigated. The results demonstrated that the addition of MnO2 suppressed the dielectric relaxor behavior of PMNST. With the increase of MnO2 addition, the diffuse phase transition (DPT) behavior weakened gradually. The addition of MnO2 contributed to the decrease of the dielectric loss (tanδ) and the enhancement of ferroelectric polarization. The optimum ferroelectric and piezoelectric properties were obtained when the addition of MnO2 is 0.75 mol%, and the remnant polarization (Pr) and mechanical quality factor (Qm) were about 25% and 60% higher than those of PMNST, respectively. It was suggested that the formation of oxygen vacancies made the important contribution to suppressing relaxor behavior and improving the electrical properties of PMNST due to the substitution of Mn for B-site. This work provided a practicable strategy to tune electrical properties of ferroelectrics.

AB - Abstract A novel ferroelectric system, 0.2Pb(Mg1/3Nb2/3)O3-0.8Pb(Sn0.46Ti0.54)O3 with MnO2 addition (PMNST-Mn), was prepared. The dielectric, ferroelectric and piezoelectric properties were investigated. The results demonstrated that the addition of MnO2 suppressed the dielectric relaxor behavior of PMNST. With the increase of MnO2 addition, the diffuse phase transition (DPT) behavior weakened gradually. The addition of MnO2 contributed to the decrease of the dielectric loss (tanδ) and the enhancement of ferroelectric polarization. The optimum ferroelectric and piezoelectric properties were obtained when the addition of MnO2 is 0.75 mol%, and the remnant polarization (Pr) and mechanical quality factor (Qm) were about 25% and 60% higher than those of PMNST, respectively. It was suggested that the formation of oxygen vacancies made the important contribution to suppressing relaxor behavior and improving the electrical properties of PMNST due to the substitution of Mn for B-site. This work provided a practicable strategy to tune electrical properties of ferroelectrics.

KW - C. Dielectric properties

KW - D. Perovskite

KW - Ferroelectrics

KW - Relaxor

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JO - Ceramics International

JF - Ceramics International

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ER -

Effect of MnO₂ addition on relaxor behavior and electrical properties of PMNST ferroelectric ceramics

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