Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO3 and (Ba,Zr)TiO3 ferroelectric ceramics

Xiaozhou Liu; Tingting Zhang; Shujun Zhang; Wenwu Cao

doi:10.1007/s11434-014-0364-9

Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO₃ and (Ba,Zr)TiO₃ ferroelectric ceramics

Xiaozhou Liu, Tingting Zhang, Shujun Zhang, Wenwu Cao

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Abstract

We have investigated the temperature dependence of elastic modulus for various ferroelectric ceramics in the temperature range of 20-90 °C. The Na_0.5Bi_0.5TiO₃ (NBT) ceramics has a phase transition at 200 °C, thus exhibits minimal change in elastic modulus up to 90 °C, while the elastic modulus of the BaZr_0.07Ti_0.93O₃ (BZT-7) shows 12.5 % change at the phase transition temperature of 70 °C and that of the BaZr_0.15Ti_0.85O₃ (BZT-15) ceramics shows 34.6 % change at the phase transition temperature of 60 °C. The variations of elastic modulus will affect the temperature stability of devices made by these lead-free ferroelectric ceramics.

Original language	English (US)
Pages (from-to)	2287-2291
Number of pages	5
Journal	Chinese Science Bulletin
Volume	59
Issue number	19
DOIs	https://doi.org/10.1007/s11434-014-0364-9
State	Published - May 2014

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title = "Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO3 and (Ba,Zr)TiO3 ferroelectric ceramics",

abstract = "We have investigated the temperature dependence of elastic modulus for various ferroelectric ceramics in the temperature range of 20-90 °C. The Na0.5Bi0.5TiO3 (NBT) ceramics has a phase transition at 200 °C, thus exhibits minimal change in elastic modulus up to 90 °C, while the elastic modulus of the BaZr0.07Ti0.93O3 (BZT-7) shows 12.5 % change at the phase transition temperature of 70 °C and that of the BaZr0.15Ti0.85O3 (BZT-15) ceramics shows 34.6 % change at the phase transition temperature of 60 °C. The variations of elastic modulus will affect the temperature stability of devices made by these lead-free ferroelectric ceramics.",

author = "Xiaozhou Liu and Tingting Zhang and Shujun Zhang and Wenwu Cao",

note = "Funding Information: Acknowledgment This work was supported by the National Basic Research Program of China (2012CB921504, 2011CB707902), the National Natural Science Foundation of China (11074122), Fundamental Research Funds for the Central Universities (1113020403, 1101020402), State Key Laboratory of Acoustics, Chinese Academy of Sciences (SKLA201207), the Priority Academic Program Development of Jiangsu Higher Education Institutions and SRF for ROCS, SEM and Project of Interdisciplinary Center of Nanjing University. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "2014",

month = may,

doi = "10.1007/s11434-014-0364-9",

language = "English (US)",

volume = "59",

pages = "2287--2291",

journal = "Chinese Science Bulletin",

issn = "1001-6538",

publisher = "Elsevier B.V.",

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T1 - Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO3 and (Ba,Zr)TiO3 ferroelectric ceramics

AU - Liu, Xiaozhou

AU - Zhang, Tingting

AU - Zhang, Shujun

AU - Cao, Wenwu

N1 - Funding Information: Acknowledgment This work was supported by the National Basic Research Program of China (2012CB921504, 2011CB707902), the National Natural Science Foundation of China (11074122), Fundamental Research Funds for the Central Universities (1113020403, 1101020402), State Key Laboratory of Acoustics, Chinese Academy of Sciences (SKLA201207), the Priority Academic Program Development of Jiangsu Higher Education Institutions and SRF for ROCS, SEM and Project of Interdisciplinary Center of Nanjing University. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/5

Y1 - 2014/5

N2 - We have investigated the temperature dependence of elastic modulus for various ferroelectric ceramics in the temperature range of 20-90 °C. The Na0.5Bi0.5TiO3 (NBT) ceramics has a phase transition at 200 °C, thus exhibits minimal change in elastic modulus up to 90 °C, while the elastic modulus of the BaZr0.07Ti0.93O3 (BZT-7) shows 12.5 % change at the phase transition temperature of 70 °C and that of the BaZr0.15Ti0.85O3 (BZT-15) ceramics shows 34.6 % change at the phase transition temperature of 60 °C. The variations of elastic modulus will affect the temperature stability of devices made by these lead-free ferroelectric ceramics.

AB - We have investigated the temperature dependence of elastic modulus for various ferroelectric ceramics in the temperature range of 20-90 °C. The Na0.5Bi0.5TiO3 (NBT) ceramics has a phase transition at 200 °C, thus exhibits minimal change in elastic modulus up to 90 °C, while the elastic modulus of the BaZr0.07Ti0.93O3 (BZT-7) shows 12.5 % change at the phase transition temperature of 70 °C and that of the BaZr0.15Ti0.85O3 (BZT-15) ceramics shows 34.6 % change at the phase transition temperature of 60 °C. The variations of elastic modulus will affect the temperature stability of devices made by these lead-free ferroelectric ceramics.

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JO - Chinese Science Bulletin

JF - Chinese Science Bulletin

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Elastic anomalies near phase transitions of lead-free (Na,Bi)TiO₃ and (Ba,Zr)TiO₃ ferroelectric ceramics

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