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Incipient piezoelectrics and electrostriction behavior in Sn-doped Bi1/2(Na0.82K0.18)1/2TiO3 lead-free ceramics

Han, Hyoung-Su and Jo, Wook and Kang, Jin-Kyu and Ahn, Chang-Won and Won Kim, Ill and Ahn, Kyoung-Kwan and Lee, Jae-Shin (2013):
Incipient piezoelectrics and electrostriction behavior in Sn-doped Bi1/2(Na0.82K0.18)1/2TiO3 lead-free ceramics.
In: Journal of Applied Physics, pp. 154102(1-6), 113, (15), ISSN 00218979,
[Online-Edition: http://dx.doi.org/10.1063/1.4801893],
[Article]

Abstract

Dielectric, ferroelectric, piezoelectric, and strain properties of lead-free Sn-doped Bi1/2(Na0.82K0.18)1/2TiO3 (BNKT) were investigated. A crossover from a nonergodic relaxor to an ergodic relaxor state at room temperature, accompanied by a giant electric-field-induced strain, was observed at 5 at. % Sn doping. Switching dynamics monitored during a bipolar poling cycle manifested that the observed giant strain originates from incipient piezoelectricity. When Sn doping level reached 8 at. %, BNKT exhibited an electrostrictive behavior with a highly temperature-insensitive electrostrictive coefficient of Q11 = 0.023 m4 C−2.

Item Type: Article
Erschienen: 2013
Creators: Han, Hyoung-Su and Jo, Wook and Kang, Jin-Kyu and Ahn, Chang-Won and Won Kim, Ill and Ahn, Kyoung-Kwan and Lee, Jae-Shin
Title: Incipient piezoelectrics and electrostriction behavior in Sn-doped Bi1/2(Na0.82K0.18)1/2TiO3 lead-free ceramics
Language: English
Abstract:

Dielectric, ferroelectric, piezoelectric, and strain properties of lead-free Sn-doped Bi1/2(Na0.82K0.18)1/2TiO3 (BNKT) were investigated. A crossover from a nonergodic relaxor to an ergodic relaxor state at room temperature, accompanied by a giant electric-field-induced strain, was observed at 5 at. % Sn doping. Switching dynamics monitored during a bipolar poling cycle manifested that the observed giant strain originates from incipient piezoelectricity. When Sn doping level reached 8 at. %, BNKT exhibited an electrostrictive behavior with a highly temperature-insensitive electrostrictive coefficient of Q11 = 0.023 m4 C−2.

Journal or Publication Title: Journal of Applied Physics
Volume: 113
Number: 15
Uncontrolled Keywords: bismuth compounds, dielectric polarisation, doping profiles, electrostriction, ferroelectric ceramics, ferroelectric switching, piezoelectricity, potassium compounds, relaxor ferroelectrics, sodium compounds, tin
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis > Subproject A1: Manufacturing of ceramic, textured actuators with high strain
11 Department of Materials and Earth Sciences > Material Science
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
11 Department of Materials and Earth Sciences
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 22 Apr 2013 08:46
Official URL: http://dx.doi.org/10.1063/1.4801893
Additional Information:

SFB 595 A1

Identification Number: doi:10.1063/1.4801893
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