Giant Electro-Mechanical Energy Conversion in Lead-Free Ferroelectric Materials
作者： Aditya Chauhan , Satyanarayan Patel , Rahul Vaish
DOI: 10.1080/07315171.2015.1008338
关键词:
摘要: The authors present a novel approach for electro-mechanical energy conversion over wide frequency domain by employing lead-free ferroelectric ceramics. methodology aims at utilizing Ericsson-like cycle giant electromechanical conversion. Systematic application of electrical and mechanical fields cyclic polarization switching leads to enhanced generation densities. reported density, achieved using 0.94(Bi0.5Na0.5)TiO3–0.05(BaTiO3)–0.01(K0.5Na0.5)NbO3 ceramic, is three orders magnitude larger than that leading lead-based materials. Estimated density was found be 940kJ.m−3 which significantly higher conventional piezoelectric harvesters.
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