Sapper, Eva ; Dittmer, Robert ; Damjanovic, Dragan ; Erdem, Emre ; Keeble, David J. ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen (2014):
Aging in the relaxor and ferroelectric state of Fe-doped (1-x)(Bi1/2Na1/2)TiO3-xBaTiO3 piezoelectric ceramics.
In: Journal of Applied Physics, 116 (10), pp. 104102(1-12). ISSN 0021-8979,
[Article]
Abstract
Aging of piezoelectric properties was investigated in lead-free (1 − x)(Bi1/2Na1/2)TiO3-xBaTiO3 doped with 1at. % Fe. The relaxor character of the un-poled material prevents macroscopic aging effects, while in the field-induced ferroelectric phase aging phenomena are similar to those found in lead zirconate titanate or barium titanate. Most prominent aging effects are the development of an internal bias field and the decrease of switchable polarization. These effects are temperature activated, and can be explained in the framework of defect complex reorientation. This picture is further supported by electron paramagnetic resonance spectra indicating the existence of (FeTi ′−VO ••)• defect complexes in the Fe-doped material.
| Item Type: | Article |
|---|---|
| Erschienen: | 2014 |
| Creators: | Sapper, Eva ; Dittmer, Robert ; Damjanovic, Dragan ; Erdem, Emre ; Keeble, David J. ; Jo, Wook ; Granzow, Torsten ; Rödel, Jürgen |
| Title: | Aging in the relaxor and ferroelectric state of Fe-doped (1-x)(Bi1/2Na1/2)TiO3-xBaTiO3 piezoelectric ceramics |
| Language: | English |
| Abstract: | Aging of piezoelectric properties was investigated in lead-free (1 − x)(Bi1/2Na1/2)TiO3-xBaTiO3 doped with 1at. % Fe. The relaxor character of the un-poled material prevents macroscopic aging effects, while in the field-induced ferroelectric phase aging phenomena are similar to those found in lead zirconate titanate or barium titanate. Most prominent aging effects are the development of an internal bias field and the decrease of switchable polarization. These effects are temperature activated, and can be explained in the framework of defect complex reorientation. This picture is further supported by electron paramagnetic resonance spectra indicating the existence of (FeTi ′−VO ••)• defect complexes in the Fe-doped material. |
| Journal or Publication Title: | Journal of Applied Physics |
| Volume of the journal: | 116 |
| Issue Number: | 10 |
| Uncontrolled Keywords: | Relaxor ferroelectrics, Materials aging, Polarization, Electron paramagnetic resonance spectroscopy, Doping |
| 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 DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties > Subproject D1: Mesoscopic and macroscopic fatigue in doped ferroelectric ceramics 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 > D - Component properties 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: | 11 Sep 2014 11:01 |
| URL / URN: | http://dx.doi.org/10.1063/1.4894630 |
| Additional Information: | SFB 595 Cooperation A1, D1 |
| Identification Number: | doi:10.1063/1.4894630 |
| PPN: | |
| Funders: | This work was supported by the Deutsche Forschungsgemeinschaft under SFB 595, Project D1 |
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