Functional composites for sensors, actuators and transducers

Tressler, James F.; Alkoy, Sedat; Doğan, Aydın; Newnham, R. E.

doi:10.1016/s1359-835x(98)00137-7

Cited by 142 publications

(84 citation statements)

References 24 publications

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“…Piezoelectric ceramic materials are widely used in modern industry to transform electrical signals into mechanical strain and vice versa; this dual nature enables piezoelectric materials to be used in electromechanical systems as both sensors and actuators [1]. Current applications of piezoelectric devices extend to automotive fuel injection, accelerometers, piezoelectric transformers and motors, vibration control, micropositioning systems, ultrasound sensors and generators, inkjet printers and many more [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Progress in engineering high strain lead-free piezoelectric ceramics

Leontsev

Eitel

2010

Science and Technology of Advanced Materials

243

136

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Environmental concerns are strongly driving the need to replace the lead-based piezoelectric materials currently employed as multilayer actuators. The current review describes both compositional and structural engineering approaches to achieve enhanced piezoelectric properties in lead-free materials. The review of the compositional engineering approach focuses on compositional tuning of the properties and phase behavior in three promising families of lead-free perovskite ferroelectrics: the titanate, alkaline niobate and bismuth perovskites and their solid solutions. The 'structural engineering' approaches focus instead on optimization of microstructural features including grain size, grain orientation or texture, ferroelectric domain size and electrical bias field as potential paths to induce large piezoelectric properties in lead-free piezoceramics. It is suggested that a combination of both compositional and novel structural engineering approaches will be required in order to realize viable lead-free alternatives to current lead-based materials for piezoelectric actuator applications.

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Section: Introductionmentioning

confidence: 99%

Progress in engineering high strain lead-free piezoelectric ceramics

Leontsev

Eitel

2010

Science and Technology of Advanced Materials

243

136

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“…A number of models have been proposed or used to predict the dielectric constants, piezoelectric and pyroelectric coefficients of mixture of two or more components (Dias and Das-Gupta, 1996;Sidney and Das-Gupta, 2000;Kohler et al, 1998;Tressler et al, 1999). A summary of dielectric constants and pyroelectric coefficients mixtures formulas is described below.…”

Section: Theoretical Modeling Of Electronic Compositesmentioning

confidence: 99%

“…Most of the formulas for mixture give expression in terms of dielectric constants of phases, their volume fractions, and depolarization factors of inclusions. A simple case where the mixture rule for calculation of permittivity, using a model of a capacitance consisting of different homogenous dielectrics connected in series or parallel is shown in Figure 6a & 6b respectively along with formulas of permittivity Tressler et al, 1999). However, in case of one phase consisting of particles dispersed in other matrix phase, the calculations become more complicated because the field distortion caused by a polarized particle depends on its orientation and shape with respect to the applied field.…”

Section: Theoretical Modeling Of Electronic Compositesmentioning

confidence: 99%

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Novel Electroceramic: Polymer Composites - Preparation, Properties and Applications

Guggilla¹,

Batra²

2011

Nanocomposites and Polymers With Analytical Methods

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“…Many reviews deal with characterization of ceramic-metal IPCs [14][15][16][17][18]. In many works, mechanical properties of lightweight metal alloys/ alumina composites are examined.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of composite materials based on porous ceramic preform infiltrated by elastomer

Chabera¹,

Boczkowska²,

Witek³

et al. 2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The paper presents the experimental results of fabrication and characterization of ceramic-elastomer composites. They were obtained using pressure infiltration of porous ceramics by elastomer As a result the composites in which two phases are interpenetrating three-dimensionally and topologically throughout the microstructure were obtained. In order to enhance mechanical properties of preforms a high isostatic pressure method was utilized. The obtained ceramic preforms with porosity gradient within the range of 20-40% as well as composites were characterized by X-ray tomography. The effect of volume fraction of pores on residual porosity of composites was examined. These results are in accordance with SEM images which show the microstructure of composites without any delaminations and voids. Such composites exhibit a high initial strength with the ability to sustain large deformations due to combining the ceramic stiffness and rubbery elasticity of elastomer. Static compression tests for the obtained composites were carried out and the energy dissipated during compression was calculated as the area under the stress-strain curve. The dynamic behavior of the composite was investigated using the split Hopkinson pressure bar technique. It was found that ceramic-elastomer composites effectively dissipate the energy. Moreover, a ballistic test was carried out using armor piercing bullets.

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Functional composites for sensors, actuators and transducers

Cited by 142 publications

References 24 publications

Progress in engineering high strain lead-free piezoelectric ceramics

Progress in engineering high strain lead-free piezoelectric ceramics

Novel Electroceramic: Polymer Composites - Preparation, Properties and Applications

Fabrication and characterization of composite materials based on porous ceramic preform infiltrated by elastomer

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