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Relevant bibliographies by topics / Dielectric Properties - Nanocomposites

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Journal articles

Academic literature on the topic 'Dielectric Properties - Nanocomposites'

Author: Grafiati

Published: 7 September 2023

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Journal articles on the topic "Dielectric Properties - Nanocomposites"

1

Feng, Zunpeng, Yanan Hao, Jiameng Zhang, Jing Qin, Limin Guo, and Ke Bi. "Dielectric Properties of Two-Dimensional Bi2Se3 Hexagonal Nanoplates Modified PVDF Nanocomposites." Advances in Polymer Technology 2019 (July 3, 2019): 1–8. http://dx.doi.org/10.1155/2019/8720678.

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Topological insulator two-dimensional (2D) Bi2Se3 hexagonal nanoplates, which are highly insulating in the bulk and have a conductive topological surface state, have been prepared via an “EG- (ethylene glycol-) sol” method and characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Bi2Se3/PVDF (polyvinylidene fluoride) nanocomposites with various Bi2Se3 contents have been fabricated by a tape-casting method. The microstructure and dielectric performance of the Bi2Se3/PVDF nanocomposites are studied. The dielectric constant of th

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2

Li, Qi, Feihua Liu, Tiannan Yang, et al. "Sandwich-structured polymer nanocomposites with high energy density and great charge–discharge efficiency at elevated temperatures." Proceedings of the National Academy of Sciences 113, no. 36 (2016): 9995–10000. http://dx.doi.org/10.1073/pnas.1603792113.

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The demand for a new generation of high-temperature dielectric materials toward capacitive energy storage has been driven by the rise of high-power applications such as electric vehicles, aircraft, and pulsed power systems where the power electronics are exposed to elevated temperatures. Polymer dielectrics are characterized by being lightweight, and their scalability, mechanical flexibility, high dielectric strength, and great reliability, but they are limited to relatively low operating temperatures. The existing polymer nanocomposite-based dielectrics with a limited energy density at high t

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3

Yang, Jiaming, Congji Liu, Changji Zheng, Hong Zhao, Xuan Wang, and Mingze Gao. "Effects of Interfacial Charge on the DC Dielectric Properties of Nanocomposites." Journal of Nanomaterials 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/2935202.

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The interfacial charge phenomenon of MgO/low-density polyethylene (LDPE) and SiO2/LDPE nanocomposites was measured by synchrotron radiation small-angle X-ray scattering. Based on the Porod theory, the Porod curve of SiO2/LDPE nanocomposite shows negative divergence but the LDPE and MgO/LDPE do not, which reveals that interfacial charge may exist in the SiO2/LDPE nanocomposite. The DC dielectric properties of the nanocomposites are closely related to the interfacial charge. Experimental results show that the SiO2/LDPE nanocomposite has lower DC conductivity, less space charge, and higher DC bre

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4

Polsterova, Helena. "Dielectric Properties of Nanocomposites Based on Epoxy Resin." ECS Transactions 105, no. 1 (2021): 461–66. http://dx.doi.org/10.1149/10501.0461ecst.

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Nanocomposites are subject of research in many fields of science. Electrical technology focused on the study of electrical properties of nanocomposites including breakdown strength, relative permittivity, resistivity and other. This paper describes the results of measurement of electrical parameters of a nanocomposite at various temperatures. The nanocomposite matrix was casting epoxy resin and nanoparticles were made of TiO2 powder at different concentrations.

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5

Li, Yan Xia, Jin Long Xie, Zhen Ming Chu, Xu Sheng Wang, and Xi Yao. "Dielectric and Energy Storage Properties of Polyvinylidene Fluoride/Barium Titanate Nanocomposites." Advanced Materials Research 833 (November 2013): 365–69. http://dx.doi.org/10.4028/www.scientific.net/amr.833.365.

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The combination of nanoparticles with high relative permittivity and polymers with high dielectric strength offers a potential to obtain processable nanocomposites with high dielectric performance. In this work, polyvinylidene fluoride (PVDF)-barium titanate (BT) nanocomposites were prepared by spin-coating technique. The surface of BT nanoparticles was treated by titanate coupling agent NDZ101. The dielectric and energy storage properties of the system were studied as a function of BT content. The experimental results showed that the dielectric constant of the nanocomposites increased with th

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6

Pattanshetti, Virappa Virupaxappa, G. M. Shashidhara, and Mysore Guruswamy Veena. "Dielectric and thermal properties of magnesium oxide/poly(aryl ether ketone) nanocomposites." Science and Engineering of Composite Materials 25, no. 5 (2018): 915–25. http://dx.doi.org/10.1515/secm-2016-0273.

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AbstractIn the present study, dielectric and thermal properties of poly(aryl ether ketone) (PAEK)-nanocomposites with varying weight percentage of magnesium oxide (MgO) have been reported. The thermal properties of PAEK/MgO nanocomposites were studied using differential scanning calorimetry, thermogravimetric analysis, thermo-mechanical analysis and thermal conductivity. Transmission electron microscopy of the developed nanocomposites shows agglomerate-free dispersion of MgO nanoparticles in PAEK matrix. From the dielectric properties, dielectric constant of 13 was achieved for 10 wt% PAEK/MgO

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7

Alam, Rabeya Binta, Md Hasive Ahmad, S. F. U. Farhad, and Muhammad Rakibul Islam. "Significantly improved dielectric performance of bio-inspired gelatin/single-walled carbon nanotube nanocomposite." Journal of Applied Physics 131, no. 12 (2022): 124103. http://dx.doi.org/10.1063/5.0077896.

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In this study, the dielectric properties of gelatin/single-walled carbon nanotube (Gel/SWCNT) nanocomposite were evaluated. The nanocomposites were synthesized by a simple solution casting method. The electron transport properties of the nanocomposites were studied by the dielectric and impedance spectroscopy techniques. A dielectric constant as high as 104 and a loss tangent of 0.91 were obtained for the Gel/SWCNT nanocomposite material at 100 Hz. The dielectric permittivity data of the nanocomposites were fitted by the modified Cole–Cole model to estimate the dielectric strength and the rela

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8

Dang, Yue-Mao, Ming-Sheng Zheng, and Jun-Wei Zha. "Improvements of dielectric properties and energy storage performances in BaTiO3/PVDF nanocomposites by employing a thermal treatment process." Journal of Advanced Dielectrics 08, no. 06 (2018): 1850043. http://dx.doi.org/10.1142/s2010135x18500431.

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The influence of thermal treatment on the dielectric properties and energy storage performances of a classical dielectric nanocomposite system (barium titanate/polyvinylidene fluoride PVDF) was discussed systematically. The results demonstrated that the permittivity of thermal treated nanocomposites increased and dielectric loss decreased compared with the untreated system. In addition, the energy density was also greatly improved due to the inclined residual polarization. For example, the energy density of the treated nanocomposite with 50[Formula: see text]vol.% nanofillers was 3.14 times hi

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9

Niaz, N. A., A. Shakoor, F. Hussain, et al. "Structural and electronic properties of PANI-ZnO-TiO2 nanocomposite." Journal of Ovonic Research 18, no. 5 (2022): 713–22. http://dx.doi.org/10.15251/jor.2022.185.713.

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The nanocomposites of doped Polyaniline (PANI) with ZnO-TiO2 nanoparticles have been prepared by in-situ polymerization method. The structural properties of synthesized PANI and PANI/ZnO-TiO2 were studied by X-ray diffraction (XRD) analysis. XRD pattern show that PANI is intercalated into the layers of ZnO-TiO2 successfully and thus the degree of crystallinity increases due to crystalline nature of ZnO-TiO2. FTIR analysis indicated that there is a strong interaction between ZnO-TiO2 nanoparticles and PANI. Electronic properties (Dielectric and Conductivity) of PANI and PANI/ZnO-TiO2 nanocompos

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10

Novruzova, A. A. "STRUCTURE AND ELECTROPHYSICAL PROPERTIES OF PVDF+PbS/CdS NANOCOMPOSITES." NNC RK Bulletin, no. 2 (October 17, 2021): 53–56. http://dx.doi.org/10.52676/1729-7885-2021-2-53-56.

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In the given paper were investigated structure and electrophysical properties of PVDF+PbS/CdS nanocomposites. Distribution and the size of PbS and CdS nanoparticles in the polymer matrix has been studied by scanning electron microscopy (JEOL JSM-7600 F). The structure of the nanocomposite samples was investigated by the X-ray diffraction spectroscopy. The dependence of dielectric permittivity at frequency and temperature was investigated. It was shown that the dielectric permittivity of PVDF+PbS/CdS nanocomposite samples was increase in small nanoparticles content. Further increase in the conc

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