Enhanced depolarization temperature in 0.90NBT-0.05KBT-0.05BT ceramics induced by BT nanowires

W. P. Cao; W. L. Li; Y. Feng; D. Xu; W. Wang; Y. F. Hou; T. D. Zhang; W. D. Fei

doi:10.1016/j.jpcs.2014.10.004

Enhanced depolarization temperature in 0.90NBT-0.05KBT-0.05BT ceramics induced by BT nanowires

W. P. Cao
, W. L. Li^*
, Y. Feng
, D. Xu
, W. Wang
, Y. F. Hou
, T. D. Zhang
, W. D. Fei

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology

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

24 Scopus citations

Abstract

The depolarization temperature (T_d) of piezoelectric materials is an important figure of merit for their application at elevated temperatures. This study focuses on the effect of BaTiO₃ (BT) nanowires on T_d and piezoelectric properties of morphotropic-phase-boundary 0.90NBT-0.05KBT-0.05BT ceramics. The results reveal that BaTiO₃ nanowires can pin the domain wall, leading to the increase of coercive field (E_c) from 21.06 kV/cm to 34.99 kV/cm. The T_d value of 0.90NBT-0.05KBT-0.05BT ceramics can be enhanced approximately 20°C when using BT nanowires instead of BT solution as the raw material. Meanwhile, at the same polarization conditions, the piezoelectric constant of the ceramic added BT nanowires (172 pC/N) is decreased but still remains a larger value compared with those of other lead-free ceramics. The results imply that the addition of BT nanowires into NBT-KBT is a very effective route to improve T_d.

Original language	English
Pages (from-to)	41-45
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	78
DOIs	https://doi.org/10.1016/j.jpcs.2014.10.004
State	Published - Mar 2015

Keywords

A. Ceramics
C. X-ray diffraction
D. Dielectric properties

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10.1016/j.jpcs.2014.10.004

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@article{9622bda351554ec78441c5809ae2dbb3,

title = "Enhanced depolarization temperature in 0.90NBT-0.05KBT-0.05BT ceramics induced by BT nanowires",

abstract = "The depolarization temperature (Td) of piezoelectric materials is an important figure of merit for their application at elevated temperatures. This study focuses on the effect of BaTiO3 (BT) nanowires on Td and piezoelectric properties of morphotropic-phase-boundary 0.90NBT-0.05KBT-0.05BT ceramics. The results reveal that BaTiO3 nanowires can pin the domain wall, leading to the increase of coercive field (Ec) from 21.06 kV/cm to 34.99 kV/cm. The Td value of 0.90NBT-0.05KBT-0.05BT ceramics can be enhanced approximately 20°C when using BT nanowires instead of BT solution as the raw material. Meanwhile, at the same polarization conditions, the piezoelectric constant of the ceramic added BT nanowires (172 pC/N) is decreased but still remains a larger value compared with those of other lead-free ceramics. The results imply that the addition of BT nanowires into NBT-KBT is a very effective route to improve Td.",

keywords = "A. Ceramics, C. X-ray diffraction, D. Dielectric properties",

author = "Cao, \{W. P.\} and Li, \{W. L.\} and Y. Feng and D. Xu and W. Wang and Hou, \{Y. F.\} and Zhang, \{T. D.\} and Fei, \{W. D.\}",

year = "2015",

month = mar,

doi = "10.1016/j.jpcs.2014.10.004",

language = "英语",

volume = "78",

pages = "41--45",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Enhanced depolarization temperature in 0.90NBT-0.05KBT-0.05BT ceramics induced by BT nanowires

AU - Cao, W. P.

AU - Li, W. L.

AU - Feng, Y.

AU - Xu, D.

AU - Wang, W.

AU - Hou, Y. F.

AU - Zhang, T. D.

AU - Fei, W. D.

PY - 2015/3

Y1 - 2015/3

N2 - The depolarization temperature (Td) of piezoelectric materials is an important figure of merit for their application at elevated temperatures. This study focuses on the effect of BaTiO3 (BT) nanowires on Td and piezoelectric properties of morphotropic-phase-boundary 0.90NBT-0.05KBT-0.05BT ceramics. The results reveal that BaTiO3 nanowires can pin the domain wall, leading to the increase of coercive field (Ec) from 21.06 kV/cm to 34.99 kV/cm. The Td value of 0.90NBT-0.05KBT-0.05BT ceramics can be enhanced approximately 20°C when using BT nanowires instead of BT solution as the raw material. Meanwhile, at the same polarization conditions, the piezoelectric constant of the ceramic added BT nanowires (172 pC/N) is decreased but still remains a larger value compared with those of other lead-free ceramics. The results imply that the addition of BT nanowires into NBT-KBT is a very effective route to improve Td.

AB - The depolarization temperature (Td) of piezoelectric materials is an important figure of merit for their application at elevated temperatures. This study focuses on the effect of BaTiO3 (BT) nanowires on Td and piezoelectric properties of morphotropic-phase-boundary 0.90NBT-0.05KBT-0.05BT ceramics. The results reveal that BaTiO3 nanowires can pin the domain wall, leading to the increase of coercive field (Ec) from 21.06 kV/cm to 34.99 kV/cm. The Td value of 0.90NBT-0.05KBT-0.05BT ceramics can be enhanced approximately 20°C when using BT nanowires instead of BT solution as the raw material. Meanwhile, at the same polarization conditions, the piezoelectric constant of the ceramic added BT nanowires (172 pC/N) is decreased but still remains a larger value compared with those of other lead-free ceramics. The results imply that the addition of BT nanowires into NBT-KBT is a very effective route to improve Td.

KW - A. Ceramics

KW - C. X-ray diffraction

KW - D. Dielectric properties

UR - https://www.scopus.com/pages/publications/84913583959

U2 - 10.1016/j.jpcs.2014.10.004

DO - 10.1016/j.jpcs.2014.10.004

M3 - 文章

AN - SCOPUS:84913583959

SN - 0022-3697

VL - 78

SP - 41

EP - 45

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

ER -

Enhanced depolarization temperature in 0.90NBT-0.05KBT-0.05BT ceramics induced by BT nanowires

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Keywords

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