Low-temperature sintering and electrical properties of Sr2Nb2O7 piezoceramics by CuO addition

Tao Chen; Ruihong Liang; Kai Jiang; Zhigao Hu; Zhiyong Zhou; Xianlin Dong

doi:10.1111/jace.14797

Low-temperature sintering and electrical properties of Sr₂Nb₂O₇ piezoceramics by CuO addition

Tao Chen, Ruihong Liang, Kai Jiang, Zhigao Hu, Zhiyong Zhou^*, Xianlin Dong

^*Corresponding author for this work

School of Physics and Electronic Science

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

22 Scopus citations

Abstract

Effects of 0.5 wt% CuO addition on the sintering, structural and electrical properties of perovskite layer structured (PLS) Sr₂Nb₂O₇ ceramics prepared by solid-state reaction method are investigated. The addition of CuO is beneficial to the liquid phase bridge formation at sintering process, leading to lower sintering temperature of 1180°C and larger bulk density up to 98%. Meanwhile, CuO modified Sr₂Nb₂O₇ ceramics show a remarkable d₃₃ of (1.1 ± 0.1) pC/N while still with a very high T_c of (1340 ± 2)°C. Raman spectra indicate that the improvement of piezoelectricity could be attributed to the rotation and/or distortion of oxygen octahedron caused by possible Cu²⁺ substitution at the A-sites of Sr₂Nb₂O₇.

Original language	English
Pages (from-to)	2397-2401
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	100
Issue number	6
DOIs	https://doi.org/10.1111/jace.14797
State	Published - 1 Jun 2017

Keywords

densification
electrical properties
layered ceramics
materials/properties
piezoelectric

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10.1111/jace.14797

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title = "Low-temperature sintering and electrical properties of Sr2Nb2O7 piezoceramics by CuO addition",

abstract = "Effects of 0.5 wt\% CuO addition on the sintering, structural and electrical properties of perovskite layer structured (PLS) Sr2Nb2O7 ceramics prepared by solid-state reaction method are investigated. The addition of CuO is beneficial to the liquid phase bridge formation at sintering process, leading to lower sintering temperature of 1180°C and larger bulk density up to 98\%. Meanwhile, CuO modified Sr2Nb2O7 ceramics show a remarkable d33 of (1.1 ± 0.1) pC/N while still with a very high Tc of (1340 ± 2)°C. Raman spectra indicate that the improvement of piezoelectricity could be attributed to the rotation and/or distortion of oxygen octahedron caused by possible Cu2+ substitution at the A-sites of Sr2Nb2O7.",

keywords = "densification, electrical properties, layered ceramics, materials/properties, piezoelectric",

author = "Tao Chen and Ruihong Liang and Kai Jiang and Zhigao Hu and Zhiyong Zhou and Xianlin Dong",

note = "Publisher Copyright: {\textcopyright} 2017 The American Ceramic Society",

year = "2017",

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doi = "10.1111/jace.14797",

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volume = "100",

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TY - JOUR

T1 - Low-temperature sintering and electrical properties of Sr2Nb2O7 piezoceramics by CuO addition

AU - Chen, Tao

AU - Liang, Ruihong

AU - Jiang, Kai

AU - Hu, Zhigao

AU - Zhou, Zhiyong

AU - Dong, Xianlin

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Effects of 0.5 wt% CuO addition on the sintering, structural and electrical properties of perovskite layer structured (PLS) Sr2Nb2O7 ceramics prepared by solid-state reaction method are investigated. The addition of CuO is beneficial to the liquid phase bridge formation at sintering process, leading to lower sintering temperature of 1180°C and larger bulk density up to 98%. Meanwhile, CuO modified Sr2Nb2O7 ceramics show a remarkable d33 of (1.1 ± 0.1) pC/N while still with a very high Tc of (1340 ± 2)°C. Raman spectra indicate that the improvement of piezoelectricity could be attributed to the rotation and/or distortion of oxygen octahedron caused by possible Cu2+ substitution at the A-sites of Sr2Nb2O7.

AB - Effects of 0.5 wt% CuO addition on the sintering, structural and electrical properties of perovskite layer structured (PLS) Sr2Nb2O7 ceramics prepared by solid-state reaction method are investigated. The addition of CuO is beneficial to the liquid phase bridge formation at sintering process, leading to lower sintering temperature of 1180°C and larger bulk density up to 98%. Meanwhile, CuO modified Sr2Nb2O7 ceramics show a remarkable d33 of (1.1 ± 0.1) pC/N while still with a very high Tc of (1340 ± 2)°C. Raman spectra indicate that the improvement of piezoelectricity could be attributed to the rotation and/or distortion of oxygen octahedron caused by possible Cu2+ substitution at the A-sites of Sr2Nb2O7.

KW - densification

KW - electrical properties

KW - layered ceramics

KW - materials/properties

KW - piezoelectric

UR - https://www.scopus.com/pages/publications/85018768467

U2 - 10.1111/jace.14797

DO - 10.1111/jace.14797

M3 - 文章

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SN - 0002-7820

VL - 100

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JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 6

ER -

Low-temperature sintering and electrical properties of Sr₂Nb₂O₇ piezoceramics by CuO addition

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Keywords

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