0-3 composite sensitivity

Chilton, J.A.; Garner, Geoffrey; Whatmore, R. W.; Ainger, F. W.

doi:10.1080/00150199008211416

Cited by 10 publications

(1 citation statement)

References 1 publication

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“…When formed into thin films, these composites can be easily embedded in thick laminate structures. Piezoelectric ceramic/polymer 0-3 composites have been studied by Chilton et al [2], Dias et al [3][4][5][6][7] and Wenger et al [1].…”

Section: Introductionmentioning

confidence: 99%

The mechanical and electromechanical properties of calcium-modified lead titanate/poly(vinylidene fluoride-trifluoroethylene) 0-3 composites

Marra

Ramesh

Douglas

1999

Smart Mater. Struct.

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Thin film composite sensors have been fabricated which incorporate piezoelectric ceramic particles in a polymer matrix. Such composites are more compliant than pure piezoelectric ceramics and can be embedded in thick structures to monitor internal mechanical conditions such as the evolution of damage. The mechanical properties and electromechanical interaction of composite films consisting of Ca-modified lead titanate particles in a poly(vinylidene fluoride-trifluoroethylene) matrix are examined in this paper. The viscoelastic properties of these composites (with various volume fractions, up to 60% ceramic) have been measured over a range of frequencies (0.01 to 100 rad ). These composite properties are primarily controlled by the viscoelastic properties of the polymer matrix, and are shown to depend greatly on frequency and ceramic content. The complex piezoelectric coefficients and have been measured for these composites for various volume fractions and over a frequency range from 5 to 100 rad . The magnitudes and phase angles of the piezoelectric coefficients are also shown to be highly frequency dependent.

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Section: Introductionmentioning

confidence: 99%

The mechanical and electromechanical properties of calcium-modified lead titanate/poly(vinylidene fluoride-trifluoroethylene) 0-3 composites

Marra

Ramesh

Douglas

1999

Smart Mater. Struct.

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Piezoelectricity in Polymers

Виноградов

2002

Encyclopedia of Smart Materials

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The diverse group of “smart” piezoelectric materials is distinguished by their ability to react actively to changing stimuli as a result of converting mechanical to electrical energy and vice versa. Synthetic piezoelectric polymers, an integral part of the “smart” materials group, exhibit a type of behavior that is often compared with biological reactions involving transformations of the sensed information into the desired response. Due to such special qualities, piezoelectric polymers have been increasingly used in a rapidly expanding range of applications. At present, these materials continue to offer unprecedented design opportunities, leading to the belief that the industry is on the verge of major technological breakthroughs. The diverse group of piezoelectric materials includes a variety of synthetic polymers such as polypropylene, polystyrene, and poly(methyl methacrylate); semicrystalline polyamides such as nylon‐11; and amorphous polymers such as vinyl acetate. However, piezoelectric effects in these materials are relatively weak, often unstable, and are considered of limited practical significance. Strong piezoelectricity has been observed only in the synthetic polymer poly(vinylidene fluoride) and PVDF copolymers.

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Acoustic emission signal detection by ceramic/polymer composite piezoelectrets embedded in glass‐epoxy laminates

Wenger

Blanas

Shuford

et al. 1996

Polymer Engineering & Sci

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Piezoelectric composites, consisting of a ferroelectric ceramic powder of calcium‐modified lead titanate dispersed in two different polymer matrices, viz. from vinylidene fluoride trifluoroethylene and an epoxy, have been fabricated. The composites show a mixed connectivity structure, and the results of electromechanical characterization are given. Thin films of these materials have been incorporated into surface mounted acoustic emission sensors and their frequency response and ability to detect plate waves, generated by a simulated acoustic emission source, has been examined. In situ transducers embedded into glass‐reinforced laminate plates have also been examined and have been shown suitable for acoustic emission sensors.

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0-3 composite sensitivity

Cited by 10 publications

References 1 publication

The mechanical and electromechanical properties of calcium-modified lead titanate/poly(vinylidene fluoride-trifluoroethylene) 0-3 composites

The mechanical and electromechanical properties of calcium-modified lead titanate/poly(vinylidene fluoride-trifluoroethylene) 0-3 composites

Piezoelectricity in Polymers

Acoustic emission signal detection by ceramic/polymer composite piezoelectrets embedded in glass‐epoxy laminates

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