Dielectric properties of three ceramic/epoxy composites

Kuo, Dong‐Hau; Chang, C.T.; Su, Te-Yeu; Wang, Wun-Ku; Lin, Bin

doi:10.1016/j.matchemphys.2004.01.003

Cited by 168 publications

(65 citation statements)

References 17 publications

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“…Most of dielectrics used as fillers in the development of polymer based 0-3 composites are inorganic polar materials, especially ferroelectrics [3][4][5][6][7][8][9], such as BaTiO 3 (BT), (Ba,Sr)TiO 3 (BST), Pb(Mg 2/3 Nb 1/3 )O 3 (PMN), P(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 (PMN-PT) and Pb(Zr,  Ti)O 3 (PZT), since these dielectrics exhibit a dielectric constant as high as 10 3 to 10 4 [10]. The dielectric constant can reach 100 in these composites [4,7].…”

Section: Introductionmentioning

confidence: 99%

Dielectric composites with a high and temperature-independent dielectric constant

et al. 2012

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Dielectric composites made using P(VDF-CTFE) 88/12 mol% as polymer matrix and both micro-sized and nano-sized CaCu 3 Ti 4 O 12 (CCTO) particles as filler are developed. These composites exhibit high dielectric constant with a small dielectric loss. More importantly, it is found that the dielectric constant of these composites is almost independent of temperature from 25 ℃ to 125 ℃. Comparing the composites made using micro-sized CCTO particles, the composites made using nano-sized CCTO particles exhibit a smaller dielectric loss. The dielectric properties of these composites indicate that the nano-sized CCTO particles have a smaller dielectric constant than the micro-sized CCTO particles.

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Section: Introductionmentioning

confidence: 99%

Dielectric composites with a high and temperature-independent dielectric constant

et al. 2012

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“…Therefore, many ferroelectric and relaxor ferroelectrics, such as BaTiO 3 (BT), Pb(Mg 1∕3 Nb 2∕3 )O 3 (PMN), Pb(Zr,Ti)O 3 (PZT), (Ba,Sr)TiO 3 (BST), have been widely used in the development of DDCs. [16][17][18][19][20][21][22][23][24][25] Unfortunately, the dielectric constant of a ferroelectric or relaxor ferroelectric is strongly dependent on the temperature. 26 The discovery of CaCu 3 Ti 4 O 12 (CCTO) provides new opportunities/avenues to develop high performance composites due to the facts that CCTO exhibits a very high dielectric constant (> 10 4 ) that is also weakly dependent on the temperature.…”

Section: Dielectric-dielectric Compositesmentioning

confidence: 99%

Physical aspects of 0-3 dielectric composites

2015

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0-3 dielectric composites with high dielectric constants have received great interest for various technological applications. Great achievements have been made in the development of high performance of 0-3 composites, which can be classified into dielectricdielectric (DDCs) and conductor-dielectric composites (CDCs). However, predicting the dielectric properties of a composite is still a challenging problem of both theoretical and practical importance. Here, the physical aspects of 0-3 dielectric composites are reviewed. The limitation of current understanding and new developments in the physics of dielectric properties for dielectric composites are discussed. It is indicated that the current models cannot explain well the physical aspects for the dielectric properties of 0-3 dielectric composites. For the CDCs, experimental results show that there is a need to find new equations/models to predict the percolative behavior incorporating more parameters to describe the behavior of these materials. For the DDCs, it is indicated that the dielectric loss of each constituent has to be considered, and that it plays a critical role in the determination of the dielectric response of these types of composites. The differences in the loss of the constituents can result in a higher dielectric constant than both of the constituents combined, which breaks the Wiener limits.

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“…In Figure 4, we present experimental results for barium titanate particle composites [7,29,30] and their simulations using different micromechanics models. Apart from the current model, we also present results obtained using the theories of [26,27,31].…”

Section: Dielectric Constant Of Batio 3 Particle Compositesmentioning

confidence: 99%

“…Our model has good agreement with the experimental results when we consider ε = −768.6 µm. [29] using PVDF as matrix, (b) experiments conducted by [30] using epoxy as matrix and BaTiO 3 powder produced by TAM Ceramics Inc., (c) experiments conducted by [30] using epoxy as matrix and selfsynthesized BaTiO 3 powder, (d) experiments conducted by [7] using PVDF as matrix and untreated barium titanate particles.…”

Section: Dielectric Constant Of Batio 3 Particle Compositesmentioning

confidence: 99%

Interface properties influence the effective dielectric constant of composites

Chatzigeorgiou

Javili

Steinmann

2015

Philosophical Magazine

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. Erlangen-Nuremberg, Egerlandstr. 5, 91058 Erlangen, Germany In this work we propose a micromechanics model, based on the composite spheres assemblage method, for studying the electrostatic behaviour of particle and porous composites when the interface between the particle (or the pore) and the matrix has its own independent behaviour. Examples from experimental results in porous media and particle composites are utilized to demonstrate the model's capabilities. The current model shows a better agreement with experiments compared with other available studies. Furthermore, it is shown that the interface dielectric constant is independent of the experiments which prove its nature as a material parameter.

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Dielectric properties of three ceramic/epoxy composites

Cited by 168 publications

References 17 publications

Dielectric composites with a high and temperature-independent dielectric constant

Dielectric composites with a high and temperature-independent dielectric constant

Physical aspects of 0-3 dielectric composites

Interface properties influence the effective dielectric constant of composites

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