Han, Hyoung-Su ; Jo, Wook ; Kang, Jin-Kyu ; Ahn, Chang-Won ; Won Kim, Ill ; Ahn, Kyoung-Kwan ; 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, 113 (15)
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 ; Jo, Wook ; Kang, Jin-Kyu ; Ahn, Chang-Won ; Won Kim, Ill ; Ahn, Kyoung-Kwan ; Lee, Jae-Shin |
| Type of entry: | Bibliographie |
| Title: | Incipient piezoelectrics and electrostriction behavior in Sn-doped Bi1/2(Na0.82K0.18)1/2TiO3 lead-free ceramics |
| Language: | English |
| Date: | 21 April 2013 |
| Journal or Publication Title: | Journal of Applied Physics |
| Volume of the journal: | 113 |
| Issue Number: | 15 |
| URL / URN: | http://dx.doi.org/10.1063/1.4801893 |
| 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. |
| Uncontrolled Keywords: | bismuth compounds, dielectric polarisation, doping profiles, electrostriction, ferroelectric ceramics, ferroelectric switching, piezoelectricity, potassium compounds, relaxor ferroelectrics, sodium compounds, tin |
| Identification Number: | doi:10.1063/1.4801893 |
| Additional Information: | SFB 595 A1 |
| 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 |
| Last Modified: | 22 Apr 2013 14:01 |
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