Impedance spectroscopic studies of cement-based piezoelectric ceramic composites

Xing, Feng; Dong, Biqin; Li, Zongjin

doi:10.1016/j.compscitech.2008.04.024

Cited by 13 publications

(7 citation statements)

References 15 publications

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“…The simulation model of the piezoelectric components should be simple and analytical with a small number of model parameters; however, they have to represent accurately the real impedance characteristics within the simulation environment. Most of the models are based on simple electrical circuits [24][25][26] and contain passive RLC components which are rather easy to implement and suitable in the circuit simulators and at the same time in the mathematical calculation systems, using only few parameters. The parameter extraction procedure of the passive electrical circuits is relatively easy, performed by using measured electrical characteristics.…”

Section: Devices With Oxide Ferroelectric Coatingsmentioning

confidence: 99%

Impedance Spectroscopy of Lead-Free Ferroelectric Coatings

Aleksandrova

Пандиев

2021

Coatings

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This paper presents impedance measurements of ferroelectric structures involving lead-free oxide and polymer-oxide composite coatings for sensing and energy harvesting applications. Three different ferroelectric materials grown by conventional microfabrication technologies on solid or flexible substrates are investigated for their basic resonant characteristics. Equivalent electrical circuit models are applied to all cases to explain the electrical behavior of the structures, according to the materials type and thickness. The analytical results show good agreement with the experiments carried out on a basic types of excited thin-film piezoelectric transducers. Additionally, temperature and frequency dependences of the dielectric permittivity and losses are measured for the polymer-oxide composite device in relation with the surface morphology before and after introduction of the polymer to the functional film.

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Section: Devices With Oxide Ferroelectric Coatingsmentioning

confidence: 99%

Impedance Spectroscopy of Lead-Free Ferroelectric Coatings

Aleksandrova

Пандиев

2021

Coatings

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“…Actually, almost all available transducers are small PZT patches in the EMI method, but some special sensors/actuators such as piezoceramic inertial actuators [76], piezoelectric stack transducers [77], and cement-based piezoelectric ceramic composites [78] are employed to satisfy practical demands or match to the host structures for structural health monitoring. Furthermore, the conventional EMI approach that consists of running wires between the local sensors and a data acquisition system will no longer be trivial.…”

Section: Determination Of Parametersmentioning

confidence: 99%

Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures

Yan

Chen

2010

Advances in Civil Engineering

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An overview of recent advances in electromechanical impedance-(EMI-) based structural health monitoring is presented in this paper. The basic principle of the EMI method is to use high-frequency excitation to sense the local area of a structure. Changes in impedance indicate changes in the structure, which in turn indicate that damages appear. An accurate EMI model based on the method of reverberation-ray matrix is introduced to correlate changes in the signatures to physical parameters of structures for damage detection. Comparison with other numerical results and experimental data validates the present model. A brief remark of the feasibility of implementing the EMI method is considered and the effects of some physical parameters on EMI technique are also discussed.

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“…Recent research has shown the possibility of using cement as a matrix [35][36][37][38][39][40][41][42][43]. Other types of cement-based piezo-composites exist such as 0-3 [44][45][46][47][48][49][50][51] or 2-2 [41,52,53]. 1-3 and 0-3 cement-based piezo-composites have been used for (i) acoustic emission monitoring of cracking [37,38,[54][55][56], (ii) active damage monitoring [38], (iii) early age monitoring of concrete properties [57,58], (iv) traffic monitoring [59].…”

Section: Introductionmentioning

confidence: 99%

A study on the performance of piezoelectric composite materials for designing embedded transducers for concrete assessment

Dumoulin

2018

Smart Mater. Struct.

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Ultrasonic measurements of concrete can provide crucial information about its state of health. The most common practice in the construction industry consists in using external probes which strongly limits the use of the method since large parts of the in-service structures are difficult to access. It is also possible to assess in real time the setting process of the concrete using ultrasonic measurements. In practice, the field measurement of the concrete hardening is limited by the formworks. As an alternative, some research teams have studied the possibility to directly embed the transducers into the concrete structures. The current embedded ultrasonic transducers are of two categories: bulk piezoelectric elements surrounded by several coating and matching layers and composites piezoelectric elements. Both technologies aim at optimizing the wave energy transmitted to the tested medium. The performances of the transducers of the first kind have been studied in a previous study. A fair amount of recent research has been focused on the development of novel cement-based piezoelectric composites. In this study, we first compare the effective properties of such cement-based materials with more widespread composites made with matrices of epoxy resins or polyurethane. The study only concerns the 1-3 fiber arrangement composites. The effective properties are computed using both an analytical mixing rule method and a finite element based homogenization method using representative volume elements (RVEs) which allows for considering more realistic fiber arrangements, leading yet to very similar results. The effective piezoelectric properties of cement-based composites appear to be very low compared to composites made of epoxy or polyurethane. This result is underlined by looking at the acoustic response and the electric input impedance of different piezoelectric discs where we compare performances of such transducers with a low-cost bulk piezoelectric disc element. The first radial mode of the latter is responsible for an acoustic response of the same order of magnitude as those for the piezo-composites. This result confirms that the design of efficient low-cost embedded ultrasonic transducers can be done with such piezoceramic discs.

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Impedance spectroscopic studies of cement-based piezoelectric ceramic composites

Cited by 13 publications

References 15 publications

Impedance Spectroscopy of Lead-Free Ferroelectric Coatings

Impedance Spectroscopy of Lead-Free Ferroelectric Coatings

Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures

A study on the performance of piezoelectric composite materials for designing embedded transducers for concrete assessment

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