Luo, Zhenhua ; Glaum, Julia ; Granzow, Torsten ; Jo, Wook ; Dittmer, Robert ; Hoffman, Mark ; Rödel, Jürgen (2011)
Bipolar and Unipolar Fatigue of Ferroelectric BNT-Based Lead-Free Piezoceramics.
In: Journal of the American Ceramic Society, 94 (2)
doi: 10.1111/j.1551-2916.2010.04101.x
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The bipolar and unipolar fatigue behavior of the lead-free piezo- and ferroelectric 0.94Bi1/2Na1/2TiO3–0.06BaTiO3 (94BNT–6BT) was investigated. To obtain a complete profile of the fatigue behavior, both large-signal (polarization, strain) and small-signal (d33, ɛ33) properties were measured at room temperature. The results indicate that the material suffers a significant degradation in both large- and small-signal properties after cycling, with most of the fatigue occurring in the first 104 cycles of the fatigue test.
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