Temperature-Dependent Ferroelectric Properties and Aging Behavior of Freeze-Cast Bismuth Ferrite–Barium Titanate Ceramics
Bastola Narayan,
Zihe Li,
Bing Wang
et al.
Abstract:Lead-free BiFeO 3 −BaTiO 3 (BF-BT) piezoceramics have sparked considerable interest in recent years due to their high piezoelectric performance and high Curie temperature. In this paper, we show how the addition of highly aligned porosity (between 40 and 60 vol %) improves the piezoelectric performance, sensing, and energy harvesting figures of merit in freeze-cast 0.70BiFeO 3 −0.30BaTiO 3 piezoceramics compared to conventionally processed, nominally dense samples of the same composition. The dense and porous … Show more
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