Microstructure and electrical properties of 3-0 type composite of Na0.5Bi2.5Nb2O9-based bismuth-layered piezoceramics

Zhiyong Zhou; Ruihong Liang; Xuefeng Shao; Rong Huang; Guofeng Cheng; Xianlin Dong

doi:10.1016/j.ceramint.2017.05.361

Microstructure and electrical properties of 3-0 type composite of Na_0.5Bi_2.5Nb₂O₉-based bismuth-layered piezoceramics

Zhiyong Zhou
, Ruihong Liang
, Xuefeng Shao
, Rong Huang
, Guofeng Cheng
, Xianlin Dong^*

^*Corresponding author for this work

School of Physics and Electronic Science

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

4 Scopus citations

Abstract

The microstructure and electrical properties of 3-0 type composite of Na_0.5Bi_2.5Nb₂O₉-based bismuth layered piezoceramics modified by Al₂O₃ addition are investigated. The darker and plate-like grains, locating at the grain boundaries, are confirmed to be pure α-Al₂O₃ by high resolution transmission electron microscope, not a Bi₂AlNbO₇ pyrochlore phase. This 3-0 type Na_0.5Bi_2.5Nb₂O₉-Al₂O₃ composite piezoceramics have a large piezoelectric constant d₃₃ of 15.2pC/N with good temperature stability up to 600 °C, and good ferroelectric properties with a relatively large remnant polarization of ~11.6 μC/cm². These demonstrate that designing a 3-0 type composite structure would be an effective approach to tailor the microstructure and improve the electrical properties of bismuth layered piezoceremics for their potential applications at temperature up to 600 °C.

Original language	English
Pages (from-to)	11710-11714
Number of pages	5
Journal	Ceramics International
Volume	43
Issue number	15
DOIs	https://doi.org/10.1016/j.ceramint.2017.05.361
State	Published - 15 Oct 2017

Keywords

Ferroelectricity
Piezoceramics
Piezoelectricity
TEM

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10.1016/j.ceramint.2017.05.361

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@article{f5d9be6d39f240ab8b97b480eae340a4,

title = "Microstructure and electrical properties of 3-0 type composite of Na0.5Bi2.5Nb2O9-based bismuth-layered piezoceramics",

abstract = "The microstructure and electrical properties of 3-0 type composite of Na0.5Bi2.5Nb2O9-based bismuth layered piezoceramics modified by Al2O3 addition are investigated. The darker and plate-like grains, locating at the grain boundaries, are confirmed to be pure α-Al2O3 by high resolution transmission electron microscope, not a Bi2AlNbO7 pyrochlore phase. This 3-0 type Na0.5Bi2.5Nb2O9-Al2O3 composite piezoceramics have a large piezoelectric constant d33 of 15.2pC/N with good temperature stability up to 600 °C, and good ferroelectric properties with a relatively large remnant polarization of \textasciitilde{}11.6 μC/cm2. These demonstrate that designing a 3-0 type composite structure would be an effective approach to tailor the microstructure and improve the electrical properties of bismuth layered piezoceremics for their potential applications at temperature up to 600 °C.",

keywords = "Ferroelectricity, Piezoceramics, Piezoelectricity, TEM",

author = "Zhiyong Zhou and Ruihong Liang and Xuefeng Shao and Rong Huang and Guofeng Cheng and Xianlin Dong",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd and Techna Group S.r.l.",

year = "2017",

month = oct,

day = "15",

doi = "10.1016/j.ceramint.2017.05.361",

language = "英语",

volume = "43",

pages = "11710--11714",

journal = "Ceramics International",

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number = "15",

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TY - JOUR

T1 - Microstructure and electrical properties of 3-0 type composite of Na0.5Bi2.5Nb2O9-based bismuth-layered piezoceramics

AU - Zhou, Zhiyong

AU - Liang, Ruihong

AU - Shao, Xuefeng

AU - Huang, Rong

AU - Cheng, Guofeng

AU - Dong, Xianlin

PY - 2017/10/15

Y1 - 2017/10/15

N2 - The microstructure and electrical properties of 3-0 type composite of Na0.5Bi2.5Nb2O9-based bismuth layered piezoceramics modified by Al2O3 addition are investigated. The darker and plate-like grains, locating at the grain boundaries, are confirmed to be pure α-Al2O3 by high resolution transmission electron microscope, not a Bi2AlNbO7 pyrochlore phase. This 3-0 type Na0.5Bi2.5Nb2O9-Al2O3 composite piezoceramics have a large piezoelectric constant d33 of 15.2pC/N with good temperature stability up to 600 °C, and good ferroelectric properties with a relatively large remnant polarization of ~11.6 μC/cm2. These demonstrate that designing a 3-0 type composite structure would be an effective approach to tailor the microstructure and improve the electrical properties of bismuth layered piezoceremics for their potential applications at temperature up to 600 °C.

AB - The microstructure and electrical properties of 3-0 type composite of Na0.5Bi2.5Nb2O9-based bismuth layered piezoceramics modified by Al2O3 addition are investigated. The darker and plate-like grains, locating at the grain boundaries, are confirmed to be pure α-Al2O3 by high resolution transmission electron microscope, not a Bi2AlNbO7 pyrochlore phase. This 3-0 type Na0.5Bi2.5Nb2O9-Al2O3 composite piezoceramics have a large piezoelectric constant d33 of 15.2pC/N with good temperature stability up to 600 °C, and good ferroelectric properties with a relatively large remnant polarization of ~11.6 μC/cm2. These demonstrate that designing a 3-0 type composite structure would be an effective approach to tailor the microstructure and improve the electrical properties of bismuth layered piezoceremics for their potential applications at temperature up to 600 °C.

KW - Ferroelectricity

KW - Piezoceramics

KW - Piezoelectricity

KW - TEM

UR - https://www.scopus.com/pages/publications/85020624780

U2 - 10.1016/j.ceramint.2017.05.361

DO - 10.1016/j.ceramint.2017.05.361

M3 - 文章

AN - SCOPUS:85020624780

SN - 0272-8842

VL - 43

SP - 11710

EP - 11714

JO - Ceramics International

JF - Ceramics International

IS - 15

ER -

Microstructure and electrical properties of 3-0 type composite of Na_0.5Bi_2.5Nb₂O₉-based bismuth-layered piezoceramics

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Keywords

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