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Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 - x - y)(Bi1/2Na1/2)TiO3-xBaTiO3-y(K0.5Na0.5)NbO3Observed byin situTransmission Electron Microscopy and Dielectric Measurements

Kling, Jens and Jo, Wook and Dittmer, Robert and Schaab, Silke and Kleebe, Hans-Joachim and Zhang, S. (2013):
Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 - x - y)(Bi1/2Na1/2)TiO3-xBaTiO3-y(K0.5Na0.5)NbO3Observed byin situTransmission Electron Microscopy and Dielectric Measurements.
In: Journal of the American Ceramic Society, pp. 3312-3324, 96, (10), ISSN 00027820,
[Online-Edition: http://dx.doi.org/10.1111/jace.12493],
[Article]

Abstract

Lead-free piezoelectric (1 – x – y)(Bi1/2Na1/2)TiO3–xBaTiO3–y(K0.5Na0.5)NbO3 (BNT–BT–KNN) ceramics were examined in situ under increasing temperature in the transmission electron microscope. Changing superstructure reflections indicate a transition from rhombohedral to tetragonal to cubic phase with broad coexistence regions. The additional evolution of the microstructure in combination with dielectric measurements leads to a model of two relaxor-type phase evolutions with temperature.

Item Type: Article
Erschienen: 2013
Creators: Kling, Jens and Jo, Wook and Dittmer, Robert and Schaab, Silke and Kleebe, Hans-Joachim and Zhang, S.
Title: Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 - x - y)(Bi1/2Na1/2)TiO3-xBaTiO3-y(K0.5Na0.5)NbO3Observed byin situTransmission Electron Microscopy and Dielectric Measurements
Language: English
Abstract:

Lead-free piezoelectric (1 – x – y)(Bi1/2Na1/2)TiO3–xBaTiO3–y(K0.5Na0.5)NbO3 (BNT–BT–KNN) ceramics were examined in situ under increasing temperature in the transmission electron microscope. Changing superstructure reflections indicate a transition from rhombohedral to tetragonal to cubic phase with broad coexistence regions. The additional evolution of the microstructure in combination with dielectric measurements leads to a model of two relaxor-type phase evolutions with temperature.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 96
Number: 10
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 > B - Characterisation > Subproject B3: Structure Characterization of Piezoelectric Ceramics With Respect to Electrical Fatigue
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 > B - Characterisation
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 Oct 2013 09:16
Official URL: http://dx.doi.org/10.1111/jace.12493
Additional Information:

SFB 595 Cooperation A1, B3

Identification Number: doi:10.1111/jace.12493
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