Piezoelectric Fiber Composite Fabrication

Schönecker, Andreas

doi:10.1007/978-0-387-76540-2_13

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…Safari et al reported on the fabrication of PZT spheres either by grinding from pressed pellets or by a wax based slip drop method. 7 A detailed overview on fibre and fibre based piezocomposite fabrication methods is presented by Schönecker, 8 Nelson 9 or Heiber. 10…”

Section: Introductionmentioning

confidence: 99%

PZT components derived from polysulphone spinning process

Hohlfeld

Gebhardt

Schönecker

et al. 2014

Advances in Applied Ceramics

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The present paper deals with the development of lead zirconate titanate (PZT) fibres, pearls and fibre fragments, for their use as active phase in piezocomposites. As new a approach, the green ceramic components are shaped by polysulphone spinning, allowing for effective and flexible forming over a wide range of different geometries and sizes.1 The correlation between processing parameters, e.g. the slurry composition, nozzle size and operation velocity, and the resultant shape of ceramic components is analysed. Sintered piezoceramic parts show a dense microstructure. Performance data are evaluated on PZT/epoxy composites. Measurement results of strain, polarisation and piezoelectric coupling are given and discussed. The developed PZT components are seen as key for the creation of smart and lightweight structural components. Further, free formed PZT components open new design approaches for sensing and actuating devices and ultrasound transducers

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Section: Introductionmentioning

confidence: 99%

PZT components derived from polysulphone spinning process

Hohlfeld

Gebhardt

Schönecker

et al. 2014

Advances in Applied Ceramics

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“…Compared with the monophasic piezoelectric materials, composite piezoelectric materials can overcome the limitation of low energy harvesting e ciency. In particular, an obvious advantage of composite piezoelectric materials is great exibility, which is desirable for manufacturing curved transducers [24], which will be further discussed in the following subsection.…”

Section: Piezoelectric Energy Harvesting Technologymentioning

confidence: 99%

The State of the Art: Application of Green Technology in Sustainable Pavement

Sun

Lü

Cheng

et al. 2018

Advances in Materials Science and Engineering

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A wide range of literature on predominant green technologies for sustainable pavements is summarized in this paper. It covers two major aspects: energy harvesting technologies and permeable pavement systems. Fundamental mechanics of energy harvesting techniques and possible designs of energy harvesters are described, with the evaluation of energy conversion efficiency, and advantages and disadvantages. In addition, the designs of permeable pavement systems are discussed, along with their advantages and disadvantages. The latest technical innovations are highlighted. It is found that green technologies are promising for developing more sustainable pavements. Application issues are also pointed out, including construction challenges, durability, and life-cycle cost-benefit assessment. Future research directions are suggested to address practical challenges, such as efficient design, construction challenge, timely maintenance, and life-cycle performance assessment.

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“…According to our knowledge, the effect of different polymer interlayers on the coupling factor has not been discussed. Electromechanical properties of the piezoelectric fibre composites are highly dependent on the phase volume fraction of fibres and their arrangement [10]. By decreasing the volume fraction of the piezoelectric fibres in 3-1 composites, the electromechanical properties like d 33 and d t decrease because of the clamping effects of the nonactive polymer material [11,12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Polymer‐Ceramic Fibre Interphase Design on Coupling Factor in Low Fibre Volume Content Piezoelectric Composites

Lusiola

Oberle

Gorjan

et al. 2018

Advances in Materials Science and Engineering

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In this work, we investigated different short molecule polymer coatings in piezoelectric ceramic-polymer composites with low fibre volume contents. Modifying the interphase between the piezoelectric PZT (lead zirconate titanate) fibre and the epoxy matrix thus enhances the electromechanical coupling factor for 1–3 ultrasound transducers with low fibre contents. It is known that the electromechanical coupling factor can be increased by precoating a ceramic fibre with a soft interlayer polymer [1-1-3]. In this paper, we investigate the so-called 1-1-1-3 composites composed of a ferroelectric ceramic fibre (core), a soft polymer layer (e.g., fatty acids, amides, waxes, or oils), an epoxy resin shell, and an epoxy resin matrix. Some soft polymer layers allowed the free movement of the ferroelectric fibres reducing blocking or clamping by the inactive polymeric matrix, resulting in higher electromechanical coupling factors (kt) for composites with low fibre volume contents. Using an oil-based interlayer, the dielectric constant can be significantly increased. The lowest fibre push-out stress could be achieved with the paraffin interlayer; however, no correlation with the coupling factor could be observed.

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Piezoelectric Fiber Composite Fabrication

Cited by 8 publications

References 21 publications

PZT components derived from polysulphone spinning process

PZT components derived from polysulphone spinning process

The State of the Art: Application of Green Technology in Sustainable Pavement

Effect of Polymer‐Ceramic Fibre Interphase Design on Coupling Factor in Low Fibre Volume Content Piezoelectric Composites

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