Journal article


Temperature dependence of unipolar fatigue behavior of lead-free alkali niobate ceramics


Publication Details
Author(s): Martin A, Kakimoto KI, Hatano K, Doshida Y
Publisher: Ceramic Soc of Japan
Publication year: 2016
Volume: 124
Journal issue: 6
Pages range: 730-736
ISSN: 1882-0743

Abstract

The unipolar fatigue behavior of undoped Li0.06Na0.52K0.42NbO3 (LNKN6-a) and the same compound with additives (LNKN6-b) were observed. Unipolar cycling was performed between room temperature and 150 degrees C under a high unipolar electric field of 4kV/mm. LNKN6-a fatigued under crack formation throughout the examined temperature range. The switchable polarization 2P(r) of LNKN6-a decreased for 20% (=2 mu C/cm(2)) at 150 degrees C. In contrast, mechanical degradation was not observed in LNKN6-b. The switchable polarization 2P(r) of LNKN6-b decreased for 15% (=3.2 mu C/cm(2)) at 150 degrees C. It should be noted that at 50 degrees C, fatigue-free behavior was observed for LNKN6-b over at least 106 cycles. The influence of phase transition on this fatigue-free behavior was discussed. (C)2016 The Ceramic Society of Japan. All rights reserved.



How to cite
APA: Martin, A., Kakimoto, K.-I., Hatano, K., & Doshida, Y. (2016). Temperature dependence of unipolar fatigue behavior of lead-free alkali niobate ceramics. Journal of the Ceramic Society of Japan, 124(6), 730-736. https://dx.doi.org/10.2109/jcersj2.15279

MLA: Martin, Alexander, et al. "Temperature dependence of unipolar fatigue behavior of lead-free alkali niobate ceramics." Journal of the Ceramic Society of Japan 124.6 (2016): 730-736.

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