Phase structure, domain structure, thermal stability, and high-temperature piezoelectric response of BiFeO3–BaTiO3 lead-free piezoelectric ceramics

Guan, Shibo; Yang, Huabin; Cheng, Shuai; Wang, Xueting; Sun, Yuanyuan; Yang, Xinyi; Tan, Hua; Zhang, Haibo

doi:10.1016/j.ceramint.2023.10.112

Cited by 5 publications

(1 citation statement)

References 68 publications

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“…Lead-free piezoelectric ceramics include BCZT, which has excellent electrical properties [84], and potassium niobate (KNbO 3 ), which is a ferroelectric perovskite crystal with orthorhombic structure [86] due to strong piezoelectricity [87] and high Curie temperature [88]. BiFeO 3 [70] is a perovskite-structured pyroelectric ceramic with a high Curie temperature of roughly 830 °C and theoretically significant spontaneous polarization [89,90]; however, it is not extensively employed due to considerable dielectric losses and weak piezoelectricity [91].…”

Section: Piezoelectric Ceramicsmentioning

confidence: 99%

A Review of Piezoelectric Energy Harvesting: Materials, Design, and Readout Circuits

Brusa,

Carrera,

Delprete

2023

Actuators

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Mechanical vibrational energy, which is provided by continuous or discontinuous motion, is an infinite source of energy that may be found anywhere. This source may be utilized to generate electricity to replenish batteries or directly power electrical equipment thanks to energy harvesters. The new gadgets are based on the utilization of piezoelectric materials, which can transform vibrating mechanical energy into useable electrical energy owing to their intrinsic qualities. The purpose of this article is to highlight developments in three independent but closely connected multidisciplinary domains, starting with the piezoelectric materials and related manufacturing technologies related to the structure and specific application; the paper presents the state of the art of materials that possess the piezoelectric property, from classic inorganics such as PZT to lead-free materials, including biodegradable and biocompatible materials. The second domain is the choice of harvester structure, which allows the piezoelectric material to flex or deform while retaining mechanical dependability. Finally, developments in the design of electrical interface circuits for readout and storage of electrical energy given by piezoelectric to improve charge management efficiency are discussed.

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