The effects of Bi(Mg2/3Nb1/3)O3 on piezoelectric and ferroelectric properties of K0.5Na 0.5NbO3 lead-free piezoelectric ceramics

Jingbo Zhao; Hongliang Du; Shaobo Qu; Jiafu Wang; Hongmei Zhang; Yiming Yang; Zhuo Xu

doi:10.1016/j.jallcom.2010.07.153

The effects of Bi(Mg_2/3Nb_1/3)O₃ on piezoelectric and ferroelectric properties of K_0.5Na _0.5NbO₃ lead-free piezoelectric ceramics

Jingbo Zhao
, Hongliang Du
, Shaobo Qu
, Jiafu Wang
, Hongmei Zhang
, Yiming Yang
, Zhuo Xu

Faculty of Electronic and Information Engineering

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

30 Scopus citations

Abstract

To improve the temperature stability of piezoelectric properties of Na _0.5K_0.5NbO₃ (KNN)-based ceramics, Bi(Mg _2/3Nb_1/3)O₃ (BMN) was used to modify Na _0.5K_0.5NbO₃ (KNN)-based ceramics by a conventional sintering technique. Piezoelectric and ferroelectric properties of 0.99K_0.5Na_0.5NbO₃-0.01Bi(Mg _2/3Nb_1/3)O₃ ceramics were studied. It is found that 0.01BMN-0.99KNN ceramics exhibits stable piezoelectric properties as the temperature changes due to the composition fluctuation on B sites (d ₃₃ ≈ 130 pC/N, dielectric loss tg θ ≤ 5% in the range 25-300 °C). These results indicate that these materials are promising lead-free piezoelectric ceramic candidates for practical applications.

Original language	English
Pages (from-to)	3537-3540
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	8
DOIs	https://doi.org/10.1016/j.jallcom.2010.07.153
State	Published - 24 Feb 2011

Keywords

Composition fluctuation
Diffusion
Lead-free ceramics
Piezoelectric
Temperature stability

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title = "The effects of Bi(Mg2/3Nb1/3)O3 on piezoelectric and ferroelectric properties of K0.5Na 0.5NbO3 lead-free piezoelectric ceramics",

abstract = "To improve the temperature stability of piezoelectric properties of Na 0.5K0.5NbO3 (KNN)-based ceramics, Bi(Mg 2/3Nb1/3)O3 (BMN) was used to modify Na 0.5K0.5NbO3 (KNN)-based ceramics by a conventional sintering technique. Piezoelectric and ferroelectric properties of 0.99K0.5Na0.5NbO3-0.01Bi(Mg 2/3Nb1/3)O3 ceramics were studied. It is found that 0.01BMN-0.99KNN ceramics exhibits stable piezoelectric properties as the temperature changes due to the composition fluctuation on B sites (d 33 ≈ 130 pC/N, dielectric loss tg θ ≤ 5\% in the range 25-300 °C). These results indicate that these materials are promising lead-free piezoelectric ceramic candidates for practical applications.",

keywords = "Composition fluctuation, Diffusion, Lead-free ceramics, Piezoelectric, Temperature stability",

author = "Jingbo Zhao and Hongliang Du and Shaobo Qu and Jiafu Wang and Hongmei Zhang and Yiming Yang and Zhuo Xu",

year = "2011",

month = feb,

day = "24",

doi = "10.1016/j.jallcom.2010.07.153",

language = "英语",

volume = "509",

pages = "3537--3540",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

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TY - JOUR

T1 - The effects of Bi(Mg2/3Nb1/3)O3 on piezoelectric and ferroelectric properties of K0.5Na 0.5NbO3 lead-free piezoelectric ceramics

AU - Zhao, Jingbo

AU - Du, Hongliang

AU - Qu, Shaobo

AU - Wang, Jiafu

AU - Zhang, Hongmei

AU - Yang, Yiming

AU - Xu, Zhuo

PY - 2011/2/24

Y1 - 2011/2/24

N2 - To improve the temperature stability of piezoelectric properties of Na 0.5K0.5NbO3 (KNN)-based ceramics, Bi(Mg 2/3Nb1/3)O3 (BMN) was used to modify Na 0.5K0.5NbO3 (KNN)-based ceramics by a conventional sintering technique. Piezoelectric and ferroelectric properties of 0.99K0.5Na0.5NbO3-0.01Bi(Mg 2/3Nb1/3)O3 ceramics were studied. It is found that 0.01BMN-0.99KNN ceramics exhibits stable piezoelectric properties as the temperature changes due to the composition fluctuation on B sites (d 33 ≈ 130 pC/N, dielectric loss tg θ ≤ 5% in the range 25-300 °C). These results indicate that these materials are promising lead-free piezoelectric ceramic candidates for practical applications.

AB - To improve the temperature stability of piezoelectric properties of Na 0.5K0.5NbO3 (KNN)-based ceramics, Bi(Mg 2/3Nb1/3)O3 (BMN) was used to modify Na 0.5K0.5NbO3 (KNN)-based ceramics by a conventional sintering technique. Piezoelectric and ferroelectric properties of 0.99K0.5Na0.5NbO3-0.01Bi(Mg 2/3Nb1/3)O3 ceramics were studied. It is found that 0.01BMN-0.99KNN ceramics exhibits stable piezoelectric properties as the temperature changes due to the composition fluctuation on B sites (d 33 ≈ 130 pC/N, dielectric loss tg θ ≤ 5% in the range 25-300 °C). These results indicate that these materials are promising lead-free piezoelectric ceramic candidates for practical applications.

KW - Composition fluctuation

KW - Diffusion

KW - Lead-free ceramics

KW - Piezoelectric

KW - Temperature stability

UR - https://www.scopus.com/pages/publications/79551489158

U2 - 10.1016/j.jallcom.2010.07.153

DO - 10.1016/j.jallcom.2010.07.153

M3 - 文章

AN - SCOPUS:79551489158

SN - 0925-8388

VL - 509

SP - 3537

EP - 3540

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 8

ER -

The effects of Bi(Mg_2/3Nb_1/3)O₃ on piezoelectric and ferroelectric properties of K_0.5Na _0.5NbO₃ lead-free piezoelectric ceramics

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Keywords

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