Good temperature stability and high piezoelectric properties of pure and La-doped tetragonal (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 ceramics

Huan Li; Qingxin Meng; Dewei Gong; Hao Tian; Zhongxiang Zhou

doi:10.1016/j.jeurceramsoc.2014.06.033

Good temperature stability and high piezoelectric properties of pure and La-doped tetragonal (K_0.45Na_0.55)_0.94Li_0.06·Ta_xNb_1-xO₃ ceramics

Huan Li
, Qingxin Meng
, Dewei Gong
, Hao Tian
, Zhongxiang Zhou^*

^*Corresponding author for this work

School of Physics

Harbin Institute of Technology

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

12 Scopus citations

Abstract

Pure and La-doped tetragonal (K_0.45Na_0.55)_0.94Li_0.06·Ta_xNb_1-xO₃ lead-free ceramics were prepared by the conventional sintering method. The piezoelectric properties and the temperature dependence of these ceramics were investigated. Both good temperature stability and high piezoelectric properties were obtained in tetragonal-phase (K_0.45Na_0.55)_0.94Li_0.06·Ta_xNb_1-xO₃ ceramics. La was employed to reduce the effect of PPT and further improve the temperature stability of (K_0.45Na_0.55)_0.94Li_0.06·Ta_0.35Nb_0.65O₃ ceramics. 0.5mol% La-doped (K_0.45Na_0.55)_0.94Li_0.06·Ta_0.35Nb_0.65O₃ ceramics show the optimum properties (high piezoelectric properties: d₃₃=152pC/N and k_p=30.5% and good temperature dependence: δfr/fr 20 °Cmax=0.79% and δkp/kp 20 °Cmax=2.11% in the temperature region 20-80°C).

Original language	English
Pages (from-to)	4185-4192
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	34
Issue number	16
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2014.06.033
State	Published - 2014

Keywords

Lead-free ceramics
Piezoelectric properties
Temperature stability
Tetragonal structure

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10.1016/j.jeurceramsoc.2014.06.033

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title = "Good temperature stability and high piezoelectric properties of pure and La-doped tetragonal (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 ceramics",

abstract = "Pure and La-doped tetragonal (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 lead-free ceramics were prepared by the conventional sintering method. The piezoelectric properties and the temperature dependence of these ceramics were investigated. Both good temperature stability and high piezoelectric properties were obtained in tetragonal-phase (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 ceramics. La was employed to reduce the effect of PPT and further improve the temperature stability of (K0.45Na0.55)0.94Li0.06·Ta0.35Nb0.65O3 ceramics. 0.5mol\% La-doped (K0.45Na0.55)0.94Li0.06·Ta0.35Nb0.65O3 ceramics show the optimum properties (high piezoelectric properties: d33=152pC/N and kp=30.5\% and good temperature dependence: δfr/fr 20 °Cmax=0.79\% and δkp/kp 20 °Cmax=2.11\% in the temperature region 20-80°C).",

keywords = "Lead-free ceramics, Piezoelectric properties, Temperature stability, Tetragonal structure",

author = "Huan Li and Qingxin Meng and Dewei Gong and Hao Tian and Zhongxiang Zhou",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd.",

year = "2014",

doi = "10.1016/j.jeurceramsoc.2014.06.033",

language = "英语",

volume = "34",

pages = "4185--4192",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "16",

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TY - JOUR

T1 - Good temperature stability and high piezoelectric properties of pure and La-doped tetragonal (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 ceramics

AU - Li, Huan

AU - Meng, Qingxin

AU - Gong, Dewei

AU - Tian, Hao

AU - Zhou, Zhongxiang

PY - 2014

Y1 - 2014

N2 - Pure and La-doped tetragonal (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 lead-free ceramics were prepared by the conventional sintering method. The piezoelectric properties and the temperature dependence of these ceramics were investigated. Both good temperature stability and high piezoelectric properties were obtained in tetragonal-phase (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 ceramics. La was employed to reduce the effect of PPT and further improve the temperature stability of (K0.45Na0.55)0.94Li0.06·Ta0.35Nb0.65O3 ceramics. 0.5mol% La-doped (K0.45Na0.55)0.94Li0.06·Ta0.35Nb0.65O3 ceramics show the optimum properties (high piezoelectric properties: d33=152pC/N and kp=30.5% and good temperature dependence: δfr/fr 20 °Cmax=0.79% and δkp/kp 20 °Cmax=2.11% in the temperature region 20-80°C).

AB - Pure and La-doped tetragonal (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 lead-free ceramics were prepared by the conventional sintering method. The piezoelectric properties and the temperature dependence of these ceramics were investigated. Both good temperature stability and high piezoelectric properties were obtained in tetragonal-phase (K0.45Na0.55)0.94Li0.06·TaxNb1-xO3 ceramics. La was employed to reduce the effect of PPT and further improve the temperature stability of (K0.45Na0.55)0.94Li0.06·Ta0.35Nb0.65O3 ceramics. 0.5mol% La-doped (K0.45Na0.55)0.94Li0.06·Ta0.35Nb0.65O3 ceramics show the optimum properties (high piezoelectric properties: d33=152pC/N and kp=30.5% and good temperature dependence: δfr/fr 20 °Cmax=0.79% and δkp/kp 20 °Cmax=2.11% in the temperature region 20-80°C).

KW - Lead-free ceramics

KW - Piezoelectric properties

KW - Temperature stability

KW - Tetragonal structure

UR - https://www.scopus.com/pages/publications/84924038366

U2 - 10.1016/j.jeurceramsoc.2014.06.033

DO - 10.1016/j.jeurceramsoc.2014.06.033

M3 - 文章

AN - SCOPUS:84924038366

SN - 0955-2219

VL - 34

SP - 4185

EP - 4192

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 16

ER -

Good temperature stability and high piezoelectric properties of pure and La-doped tetragonal (K_0.45Na_0.55)_0.94Li_0.06·Ta_xNb_1-xO₃ ceramics

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