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Effect of Texture on Temperature-Dependent Properties of K0.5Na0.5NbO3Modified Bi1/2Na1/2TiO3-xBaTiO3

Fancher, Chris M. and Jo, Wook and Rödel, Jürgen and Blendell, John E. and Bowman, Keith J. and Ihlefeld, J. (2014):
Effect of Texture on Temperature-Dependent Properties of K0.5Na0.5NbO3Modified Bi1/2Na1/2TiO3-xBaTiO3.
In: Journal of the American Ceramic Society, pp. 2557-2563, 97, (8), ISSN 00027820, [Online-Edition: http://dx.doi.org/10.1111/jace.12986],
[Article]

Abstract

Textured (1−x−y)Bi1/2Na1/2TiO3–xBaTiO3–yK0.5Na0.5NbO3 (BNT–100xBT–100yKNN) ceramics with a {001} pseudocubic (pc) orientation were fabricated by templated grain growth using Bi1/2Na1/2TiO3 templates. Temperature-dependent electromechanical results demonstrate that the strain response of templated BNT–xBT–yKNN ceramics is stable from room temperature (RT) to 125°C. The temperature-dependent strain and polarization response are compared to randomly oriented ceramics, for BNT–100xBT–2KNN (0.05 ≤ x ≤ 0.07). Textured BNT–7BT–2KNN reached a maximum 0.47% strain response at 5 kV/mm, an almost 50% increase compared to randomly oriented BNT–7BT–2KNN. Over the temperature range RT–125°C, the strain response of templated BNT–6BT–2KNN degraded from 0.38% to 0.22% (−42.1%) compared to 0.37% to 0.18% (−51.4%) for randomly oriented ceramics. The temperature-dependent strain response suggests that templated BNT–100xBT–100yKNN ceramics are well suited for elevated temperature applications.

Item Type: Article
Erschienen: 2014
Creators: Fancher, Chris M. and Jo, Wook and Rödel, Jürgen and Blendell, John E. and Bowman, Keith J. and Ihlefeld, J.
Title: Effect of Texture on Temperature-Dependent Properties of K0.5Na0.5NbO3Modified Bi1/2Na1/2TiO3-xBaTiO3
Language: English
Abstract:

Textured (1−x−y)Bi1/2Na1/2TiO3–xBaTiO3–yK0.5Na0.5NbO3 (BNT–100xBT–100yKNN) ceramics with a {001} pseudocubic (pc) orientation were fabricated by templated grain growth using Bi1/2Na1/2TiO3 templates. Temperature-dependent electromechanical results demonstrate that the strain response of templated BNT–xBT–yKNN ceramics is stable from room temperature (RT) to 125°C. The temperature-dependent strain and polarization response are compared to randomly oriented ceramics, for BNT–100xBT–2KNN (0.05 ≤ x ≤ 0.07). Textured BNT–7BT–2KNN reached a maximum 0.47% strain response at 5 kV/mm, an almost 50% increase compared to randomly oriented BNT–7BT–2KNN. Over the temperature range RT–125°C, the strain response of templated BNT–6BT–2KNN degraded from 0.38% to 0.22% (−42.1%) compared to 0.37% to 0.18% (−51.4%) for randomly oriented ceramics. The temperature-dependent strain response suggests that templated BNT–100xBT–100yKNN ceramics are well suited for elevated temperature applications.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 97
Number: 8
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: 07 Aug 2014 10:40
Official URL: http://dx.doi.org/10.1111/jace.12986
Additional Information:

SFB 595 A1

Identification Number: doi:10.1111/jace.12986
Funders: This work was supported by the U.S. National Science Foundation grant no. DMR 0805022. , Use of the Advanced Photon Source was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract no. DE-AC02-06CH11357. , The stay of CF at Darmstadt was supported by the Deutsche Forschungsgemeinschaft under SFB595 (Project A1).
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