Characterisation of proton irradiated Ba0.65Sr0.35TiO3/P(VDF-TrFE) ceramic–polymer composites

Adikary, SU; Chan, Helen Lai Wah; Choy, C. L.; Sundaravel, B.; Wilson, I.

doi:10.1016/s0266-3538(02)00149-5

Cited by 48 publications

(22 citation statements)

References 10 publications

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“…The feasibility of these composites for use in piezoelectric and pyroelectric applications, flexible sensors, transducers, thick film dielectrics, embedded capacitors, tunable antennas and other multilayer RF devices has been studied. [2][3][4] The research has mainly concentrated on epoxy-ceramic composites, [5][6][7][8] but also other polymers, such as PVDF, 9 P(VDF-TrFE), 10 silicon-rubber, 11 polyimide, 12 polyvinylchloride (PVC), 13 cyanoethylated cellulose polymer (CR-S), 14 polystyrene, 15 and polyurethane, 16 have been used. However, only a few composites that use thermoplastic polymers have been reported.…”

Section: Introductionmentioning

confidence: 99%

Dielectric properties of BST/polymer composite

Juuti

Jantunen

et al. 2007

Journal of the European Ceramic Society

129

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Section: Introductionmentioning

confidence: 99%

Dielectric properties of BST/polymer composite

Juuti

Jantunen

et al. 2007

Journal of the European Ceramic Society

129

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“…The effective permittivity of two phases composite can be approximated with classical dielectric mixing rules, Maxwell-Garnett (MG) and Bruggeman [17,18], or with the new differential (Diff) mixing equation presented by Jylhä et al [19]. In Figure 5 calculations with Maxwell-Garnett and differential equations for reference samples shows quite good agreement with the measured relative permittivity.…”

Section: Discussionmentioning

confidence: 70%

Organic-Inorganic Rf Composites With Enhanced Permittivity by Nanoparticle Additions

Teirikangas¹,

Juuti²,

Jantunen³

2011

PIER

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Abstract-Organic-inorganic thermoplastic composites offer a costeffective material choice with tuneable dielectric properties for various telecom components and applications. Typically such composites require substantial loading of inorganics to obtain a feasible level of permittivity at RF frequencies dramatically decreasing mechanical ruggedness and increasing losses. In this paper we demonstrate utilization of nanoparticle phase in BaSrTiO 3 -polypropylene-graft-poly (styrene-stat-divenylbenzene) composite to enhance the high frequency properties and overcome the problems associated with high filler loading. The effect of nanosize silicon, silver and Al 2 O 3 additives with different volume fractions in complex permittivity was investigated up to 1 GHz. Significant increase in the effective permittivity of the composites with all the additives was observe, especially in the case of the nanosized silver particles where only 2 vol.% addition was able to enhance ε r by 52% without increasing the dielectric losses when compared to the reference sample.

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“…A great deal attention has been paid to the development of flexible dielectrics using composite approach, especially the 0-3 composites, in which high-dielectric constant particles are used as filler and the polymer is used as matrix. It is expected that the composites would be flexible and of relative high dielectric constant [2,3]. It is well known that the ferroelectrics, especially the relaxor ferroelectrics, exhibit a high dielectric constant [4].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Dielectric Properties of CCTO-P(VDF-TrFE) Nanocomposites

Zhang

Shan

et al. 2010

Ferroelectrics

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Ceramic/polymer composites made of nanosized CaCu 3 Ti 4 O 12 (CCTO) powders as filler and P(VDF-TrFE) copolymers as matrix were fabricated by solution casting method followed by a hot-press process. The hot-press process results in a better morphological uniformity in the composites. The morphology of the composites was investigated using scanning electron microscopy, while the dielectric propeorties of the composites at temperatures from room temperature to 125 • C were characterized at frequencies from 100 Hz to 1 MHz. It is found that the composites exhibit a relatively high dielectric constant with a small dielectric loss. For example, the flexible composites with 50 vol.% CCTO, the dielectric constant at 1 kHz is 60 with a loss about 0.05.

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Characterisation of proton irradiated Ba0.65Sr0.35TiO3/P(VDF-TrFE) ceramic–polymer composites

Cited by 48 publications

References 10 publications

Dielectric properties of BST/polymer composite

Dielectric properties of BST/polymer composite

Organic-Inorganic Rf Composites With Enhanced Permittivity by Nanoparticle Additions

Microstructure and Dielectric Properties of CCTO-P(VDF-TrFE) Nanocomposites

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