Study on microstructure and dielectric property of the BaTiO3/epoxy resin composites

Dang, Zhi‐Min; Yu, Yan-Fei; Xu, Haiping; Bai, Jinbo

doi:10.1016/j.compscitech.2007.05.021

Cited by 184 publications

(105 citation statements)

References 10 publications

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“…The given permittivities are in good agreement with data taken from literature applying e.g. epoxides as polymer matrix (Dang et al 2008;Patsidis and Parras 2008). Significant higher permittivity values have been also reported using a polyimide matrix (Devaraju et al 2005).…”

Section: Composites Containing Untreated Barium Titanatesupporting

confidence: 78%

Development of new polymer–BaTiO3-composites with improved permittivity for embedded capacitors

2011

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A series of commercially available nanosized barium titanates has been investigated with respect to their use as high-k-ceramic filler in polymer based composites with improved dielectric properties. The thermal treatment of the barium titanate powders at 1,000°C causes a significant increase of the composite's permittivity. X-ray diffraction experiments prior and after heat treatment revealed that the barium titanate with smallest particle size and the largest specific surface area possesses the thermodynamically unstable cubic phase. In case of the other investigated barium titanates the crystal lattice is distorted. Thermal treatment induces the phase change into the tetragonal one and crystal lattice relaxation enabling higher permittivity values. Composites with a solid load around 78 wt% with a bimodal particle size distribution show high permittivities around 50 and a low loss factor around 5% suitable for the realization of embedded capacitors via screen printing or tape casting.

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Section: Composites Containing Untreated Barium Titanatesupporting

confidence: 78%

Development of new polymer–BaTiO3-composites with improved permittivity for embedded capacitors

2011

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“…Research suggests that having higher interfacial surfaces leads to higher permittivity [17,18], and has the potential to increase permittivity by up to 100 times [20][21][22][23]. In particular, for nanocomposites fabricated with TiO2 [17] and BaTiO3 [22], researchers found that simple mixing rules applies and the experimental results matched the theoretical ones [15,16] [24].…”

Section: Introductionsupporting

confidence: 68%

Interfacial treatment effects on behavior of soft nano-composites for highly stretchable dielectrics

Saleem

Thunga

Kollosche

et al. 2014

Polymer

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We investigate the influence of interfacial treatment on the matrix-filler interaction using a melt mixing process to fabricate robust and highly stretchable dielectrics. Silicone oil and silane coupling agent are studied as possible solutions to enhance the compatibility between the inorganic fillers and polymer matrix. Morphology, thermomechanical and dielectric behavior of the prepared specimens are studied. Results show that specimens filled with silicone oil coated particles have promising dielectric and thermal properties. The mechanical properties reveal a stiffness enhancement by 67% with a high strain at break of 900%. The relative permittivity of the specimens prepared with silicone oil increased by 45% as observed from the dielectric analysis. KeywordsMaterials Science and Engineering, Dielectric materials, Permittivity, Surface treatment Disciplines Civil Engineering | Computer-Aided Engineering and Design | Construction Engineering and Management | Electrical and Computer Engineering | Electronic Devices and Semiconductor Manufacturing | Environmental EngineeringComments NOTICE: this is the author's versin of a work that was accepted for publication in Polymer. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. a definitive version was subsequently published in Polymer, 55 (17) AbstractWe investigate the influence of interfacial treatment on the matrix-filler interaction using a meltmixing process to fabricate robust and highly stretchable dielectrics. Silicone oil and silane coupling agent are studied as possible solutions to enhance the compatibility between the inorganic fillers and polymer matrix. Morphology, thermomechanical and dielectric behavior of the prepared specimens are studied. Results show that specimens filled with silicone oil coated particles have promising dielectric and thermal properties. The mechanical properties reveal a stiffness enhancement by 67% with a high strain at break of 900 %. The relative permittivity of the specimens prepared with silicone oil increased by 45% as observed from the dielectric analysis.

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“…Although the piezoelectric coefficient d 33 of conventional BaTiO 3 is lower than that of PZT, a large effort is lately taking place in fabricating high-performance BaTiO 3 [19]. In addition to this, polymer/BaTiO 3 composites are also of great interest for the fabrication of high-relative permittivity materials for, e.g., embedded capacitors [20][21][22][23][24]. For polymer/BaTiO 3 composites the reported absolute values for d 33 are usually between 1 and 30 pC/N [6,8,25,26] (the sign depending on the polarization conditions in the case of piezoelectric polymer matrices), although a d 33 higher than 50 pC/N was reported for a PVDF/BaTiO 3 composite [27].…”

Section: Introductionmentioning

confidence: 99%

The effect of processing conditions on the morphology, thermomechanical, dielectric, and piezoelectric properties of P(VDF-TrFE)/BaTiO3 composites

et al. 2012

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In this study (0-3) P(VDF-TrFE)/BaTiO 3 composites containing up to 60 vol% of ceramic phase were prepared by solvent casting or compression molding. Their thermomechanical, dielectric, and piezoelectric properties were investigated, and discussed in the light of the properties of the basic components, the processing route and the resulting morphology. The crystalline structure of the P(VDF-TrFE) matrix was found to be highly dependent on the processing route, while the structure of BaTiO 3 was not affected by any of the processing steps. The mechanical properties of the solvent cast materials showed a maximum at 30 vol% BaTiO 3 , while they increased monotonically with BaTiO 3 content for compression molded materials. This difference was attributed to a higher amount of porosity and inhomogeneities in the solvent cast composites. Permittivity as high as 120 and piezoelectric coefficient d 33 up to 32 pC/N were obtained for compression molded composites, and the observed decrease in d 33 with aging time was attributed to the effect of mechanical stress release in the polymer matrix.

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Study on microstructure and dielectric property of the BaTiO3/epoxy resin composites

Cited by 184 publications

References 10 publications

Development of new polymer–BaTiO3-composites with improved permittivity for embedded capacitors

Development of new polymer–BaTiO3-composites with improved permittivity for embedded capacitors

Interfacial treatment effects on behavior of soft nano-composites for highly stretchable dielectrics

The effect of processing conditions on the morphology, thermomechanical, dielectric, and piezoelectric properties of P(VDF-TrFE)/BaTiO3 composites

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