Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 – x – y)(Bi1/2Na1/2)TiO3–xBaTiO3–y(K0.5Na0.5)NbO3 Observed by in situ Transmission Electron Microscopy and Dielectric Measurements

Jens Kling; Wook Jo; Robert Dittmer; Silke Schaab; Hans-Joachim Kleebe

doi:10.1111/jace.12493

Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 – x – y)(Bi_1/2Na_1/2)TiO₃–xBaTiO₃–y(K_0.5Na_0.5)NbO₃ Observed by in situ Transmission Electron Microscopy and Dielectric Measurements

Jens Kling, Wook Jo, Robert Dittmer, Silke Schaab, Hans-Joachim Kleebe

Technische Universität Darmstadt

Research output: Contribution to journal › Journal article › Research › peer-review

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.

Original language	English
Journal	Journal of the American Ceramic Society
Volume	96
Issue number	10
Pages (from-to)	3312-3324
ISSN	0002-7820
DOIs	https://doi.org/10.1111/jace.12493
Publication status	Published - 2013

Keywords

In situ processing
Measurements
Niobium oxide
Piezoelectric ceramics
Transmission electron microscopy
Sodium

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Kling, J., Jo, W., Dittmer, R., Schaab, S., & Kleebe, H.-J. (2013). Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 – x – y)(Bi_1/2Na_1/2)TiO₃–xBaTiO₃–y(K_0.5Na_0.5)NbO₃ Observed by in situ Transmission Electron Microscopy and Dielectric Measurements. Journal of the American Ceramic Society, 96(10), 3312-3324. https://doi.org/10.1111/jace.12493

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title = "Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 – x – y)(Bi1/2Na1/2)TiO3–xBaTiO3–y(K0.5Na0.5)NbO3 Observed by in situ Transmission Electron Microscopy and Dielectric Measurements",

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.",

keywords = "In situ processing, Measurements, Niobium oxide, Piezoelectric ceramics, Transmission electron microscopy, Sodium",

author = "Jens Kling and Wook Jo and Robert Dittmer and Silke Schaab and Hans-Joachim Kleebe",

year = "2013",

doi = "10.1111/jace.12493",

language = "English",

volume = "96",

pages = "3312--3324",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

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}

Kling, J, Jo, W, Dittmer, R, Schaab, S & Kleebe, H-J 2013, 'Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 – x – y)(Bi_1/2Na_1/2)TiO₃–xBaTiO₃–y(K_0.5Na_0.5)NbO₃ Observed by in situ Transmission Electron Microscopy and Dielectric Measurements', Journal of the American Ceramic Society, vol. 96, no. 10, pp. 3312-3324. https://doi.org/10.1111/jace.12493

Temperature-Dependent Phase Transitions in the Lead-Free Piezoceramics (1 – x – y)(Bi_1/2Na_1/2)TiO₃–xBaTiO₃–y(K_0.5Na_0.5)NbO₃ Observed by in situ Transmission Electron Microscopy and Dielectric Measurements. / Kling, Jens; Jo, Wook; Dittmer, Robert et al.
In: Journal of the American Ceramic Society, Vol. 96, No. 10, 2013, p. 3312-3324.

Research output: Contribution to journal › Journal article › Research › peer-review

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KW - Measurements

KW - Niobium oxide

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