Dielectric and piezoelectric properties of cement-containing piezoelectric composites: Experiments and modeling

Liu, Wei; Sun, Haoxin; Li, Zhonghua; Wang, Jianhong; Bai, Peikang

doi:10.1016/j.matdes.2023.111689

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…Attractively, in a PZT/P(VDF‐TrFE) sheet with 17 PZT columns with a thickness of 1.5 mm, f s and f p are 1.296 kHz and 938.07 kHz, respectively, and k t is calculated to a considerable value of 0.725, as illustrated in Figure 8F. Compared to PZT columns in literature, 6–9,27–30 the value of k t (0.725) of the PZT/P(VDF‐TrFE) piezoelectric sheet has been largely improved. Thus, the large k t corresponds to high sensitivity and transmission efficiency, which indicates this 1–3 PZT/P(VDF‐TrFE) sheet is anticipated to be applied in high‐precision energy‐transferring devices.…”

Section: Resultsmentioning

confidence: 91%

Enhanced electromechanical coupling in Pb(ZrTi)O₃ piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

Wang,

Xia,

Wang

et al. 2024

Polymer Composites

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This study presents an advanced two‐step hot‐pressing process for fabricating the 1‐3 type Pb(ZrTi)O3/poly(vinylidene fluoride‐trifluoroethylene) (PZT/P(VDF‐TrFE)) piezoelectric composite sheets, demonstrating significant potential for nondestructive evaluation and information storage applications. The engineered columnar architecture within these composites induces a two‐phase clamping effect, which, upon polarization, facilitates the elongation of PZT and suppresses its lateral vibrations, thus enhancing the electromechanical coupling effect as verified by COMSOL simulations. A notable dielectric constant of 2200 at 100 Hz and a coupling coefficient of 0.725 was achieved with specific geometric modifications to the PZT/P(VDF‐TrFE) sheets. These findings suggest that P(VDF‐TrFE) as a polymer matrix exceeds the performance of conventional epoxy matrices, offering a novel approach to designing 1‐3 type piezoelectric composites.Highlights P(VDF‐TrFE) effectively drives the elongation strain of internal PZT columns. COMSOL simulation clarifies the clamping effect of piezoelectric P(VDF‐TrFE). PZT/P(VDF‐TrFE) shows a higher kt of 0.725 than that of pure PZT samples.

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Section: Resultsmentioning

confidence: 91%

Enhanced electromechanical coupling in Pb(ZrTi)O₃ piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

Wang,

Xia,

Wang

et al. 2024

Polymer Composites

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“…The second category is piezoelectric ceramics, such as barium titanate (BTO), − lead zirconate titanate (PZT), − modified PZT, − and modified lead titanate (PT). , They have higher dielectric constants and piezoelectricity compared to piezoelectric crystals, which enhance the performance of piezoelectric devices. However, in the field of flexible self-powered sensors, it is difficult to use piezoelectric ceramics in wearable sensing due to their rigidity and brittleness.…”

Section: Flexible Piezoelectric Self-powered Sensorsmentioning

confidence: 99%

Recent Advances in Self-powered Sensors Based on Nanogenerators: From Material and Structural Design to Cutting-Edge Sensing Applications

Ren,

Guo,

Wang

et al. 2024

ACS Appl. Electron. Mater.

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The utilization of sensors has become indispensable in the advent of an intelligent era characterized by artificial intelligence, 5G communication, big data, and other cutting-edge technologies. Traditional sensors require external power sources or batteries, resulting in a complex sensing system that does not promote the development of sustainable and environmentally friendly applications for health monitoring. In recent years, the electrical output and stability of piezoelectric, triboelectric, thermoelectric, and hybrid nanogenerators have been significantly improved, enabling their widespread role in the development of self-powered sensors. The sensors are capable of performing sensing tasks by converting their own energy, thereby obviating the need for an external power supply. In this paper, we initially explore the operating mechanisms, device materials, and structures of diverse nanogenerators and evaluate their output efficacy. Subsequently, we showcase the latest advancements in self-powered sensor systems, spanning various fields such as biomedical and healthcare, wearable devices, sound monitoring, smart vehicles, environmental monitoring, and smart cities. The paper also explores the future potential of self-powered sensor systems, in addition to discussing their practical applications.

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Role of Nb5+-Nd3+ co-dopant in morphotropic boundary of electrospun PZT nanoneedles: Study on dielectric and piezoelectric sensitivity

Yousefi¹,

Esfahani²

2023

Journal of Alloys and Compounds

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Dielectric and piezoelectric properties of cement-containing piezoelectric composites: Experiments and modeling

Cited by 6 publications

References 25 publications

Enhanced electromechanical coupling in Pb(ZrTi)O₃ piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

Enhanced electromechanical coupling in Pb(ZrTi)O₃ piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

Recent Advances in Self-powered Sensors Based on Nanogenerators: From Material and Structural Design to Cutting-Edge Sensing Applications

Role of Nb5+-Nd3+ co-dopant in morphotropic boundary of electrospun PZT nanoneedles: Study on dielectric and piezoelectric sensitivity

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Dielectric and piezoelectric properties of cement-containing piezoelectric composites: Experiments and modeling

Cited by 6 publications

References 25 publications

Enhanced electromechanical coupling in Pb(ZrTi)O3 piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

Enhanced electromechanical coupling in Pb(ZrTi)O3 piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

Recent Advances in Self-powered Sensors Based on Nanogenerators: From Material and Structural Design to Cutting-Edge Sensing Applications

Role of Nb5+-Nd3+ co-dopant in morphotropic boundary of electrospun PZT nanoneedles: Study on dielectric and piezoelectric sensitivity

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Enhanced electromechanical coupling in Pb(ZrTi)O₃ piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping

Enhanced electromechanical coupling in Pb(ZrTi)O₃ piezoelectric composite via poly(vinylidene fluoride‐trifluoroethylene) clamping