&lt;title&gt;Active PZT fibers: a commercial production process&lt;/title&gt;

Strock, Harold B.; Pascucci, Marina R.; Parish, Mark V.; Bent, Aaron A.; Shrout, Thomas R.

doi:10.1117/12.352799

Cited by 28 publications

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“…The green fibers were shaped by extrusion (EMPA, Swiss Federal Laboratory for Materials Testing and Research, Dübendorf, Switzerland), 31,32 the ALCERU ® cellulose spinning technique (SM, Smart Material Corp., Dresden, Germany) 33 and the polysulfone procedure (IKTS, Fraunhofer Institute Ceramic Technologies and Systems, Dresden, Germany) 34 . It is well known that different sintering parameters will influence the microstructure and mechanical properties of the Pb(Zr,Ti)O 3 structures due to the high mobility of the lead component during sintering.…”

Section: Methodsmentioning

confidence: 99%

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O₃ Fibers Derived by Different Processing Routes

Dittmer

Clemens

Schoenecker

et al. 2010

Journal of the American Ceramic Society

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Piezoceramic fibers are broadly used for advanced ultrasound transducers and composite sensors and actuators for smart system applications. Different techniques (ALCERU® cellulose spinning technique, extrusion, and polysulfone process) have been developed for fiber fabrication, although there is still an essential need to evaluate the mechanical and electromechanical performance of these fibers. In this study, the microstructure and mechanical properties have been investigated for different fibers fabricated by the three routes. Because of the same sintering program, the fibers showed mainly a similar grain size (1–2 μm) and porosity (2%–6%). A tensile strength up to 72 MPa could be measured for PZT fibers with a diameter of 250 μm produced by the cellulose spinning technique. The Young's modulus varied between 30 and 60 GPa. Stress–strain deformation showed nonlinearity behavior, which could be attributed to ferroelastic domain switching. The threshold for domain switching (proportional limit) of the deformation curve had decreased by increasing the diameter of the fiber. No correlation between fiber processing and proportional limit could be observed.

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Section: Methodsmentioning

confidence: 99%

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O₃ Fibers Derived by Different Processing Routes

Dittmer

Clemens

Schoenecker

et al. 2010

Journal of the American Ceramic Society

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“…They have potential for use as actuators and sensors [3], structural health monitoring systems [4] and active/passive vibration damping systems [5]. Considerable effort is underway, developing high performance/strain fibres [6][7][8][9]. A significant and additional factor when determining the piezoelectric strain is the geometry of the interdigitaded electrode (IDE) that is used to direct the electric field to in-plane directions, thus taking advantage of the d 33 mode of actuation.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of interdigitated electrodes for piezoelectric actuators and active fibre composites

et al. 2006

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The optimisation of the interdigitated electrode (IDE) design for active fibre composites was performed using finite element analysis. The effect of the IDE geometry (electrode width and spacing) and electroceramic substrate thickness on the developed strain for bulk PZT substrates was modelled. The modelling results show that the highest strain is generated when the electrode width equals half the substrate thickness and for thin substrates the electrode finger spacing can be reduced to enable lower driving voltages. Approximately 80% of the maximum d 33 strain can be achieved with an electrode separation to substrate thickness ratio greater than 4. The results present simple coherent guidelines for the optimisation of electrode geometry for piezoelectric actuators and active fibre composites.

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“…The most commonly used piezoelectric ceramic is lead zirconate titanate, Pb(Zr,Ti)O 3 (PZT). In the last few years, a variety of micron-scale PZT fibres (40 -800 mm in diameter) have been manufactured by various methods including sol -gel, extrusion, and viscous suspension spinning, some of which are now commercially available [1][2][3][4]. The applications for these fine-scale fibres include 1 -3 composites, which are aligned fibres embedded in a polymer matrix for medical transducer and SONAR applications [5,6], and active fibre composites (AFCs) that have a variety of potential benefits over conventional piezoelectric sensing and actuating devices [7,8].…”

Section: Introductionmentioning

confidence: 99%

Failure and volume fraction dependent mechanical properties of composite sensors and actuators

Bowen

Dent

Nelson

et al. 2006

Proceedings of the Institution of Mechanical Engineers, Part C:

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Composite actuators and sensors manufactured by combining a ferroelectric ceramic such as lead zirconate titanate and a passive phase such as a polymer are used in a variety of applications including SONAR, vibration damping, change of structural shape (morphing), and structural health monitoring. The composite route provides specific advantages, including tailored piezoelectric response, high strain, a degree of flexibility, and increased damage tolerance compared with conventional dense monolithic ceramic materials. For piezoelectric fibre composites, where fine-scale brittle ceramic fibres of 40 -800 mm diameter are introduced into a ductile polymer matrix, the composite strength and failure mechanism ultimately depend on the mechanical properties of each phase and their volume fraction. This article examines the mechanical properties of piezoelectric fibres and the matrix phase and discusses the possible influence of fibre volume fraction on mechanical properties and failure mechanism of the composite. The data are of particular use in determining the failure stress, failure strain, and failure mechanism of composite actuators and sensors subjected to high levels of stress, for example, in applications where such devices are embedded into host structures.

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<title>Active PZT fibers: a commercial production process</title>

Cited by 28 publications

References 0 publications

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O₃ Fibers Derived by Different Processing Routes

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O₃ Fibers Derived by Different Processing Routes

Optimisation of interdigitated electrodes for piezoelectric actuators and active fibre composites

Failure and volume fraction dependent mechanical properties of composite sensors and actuators

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<title>Active PZT fibers: a commercial production process</title>

Cited by 28 publications

References 0 publications

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O3 Fibers Derived by Different Processing Routes

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O3 Fibers Derived by Different Processing Routes

Optimisation of interdigitated electrodes for piezoelectric actuators and active fibre composites

Failure and volume fraction dependent mechanical properties of composite sensors and actuators

Contact Info

Product

Resources

About

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O₃ Fibers Derived by Different Processing Routes

Microstructural Analysis and Mechanical Properties of Pb(Zr,Ti)O₃ Fibers Derived by Different Processing Routes