Academic literature on the topic 'EMI shielding behavior'

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Journal articles on the topic "EMI shielding behavior"

1

Yim, Yoon-Ji, Jae Jun Lee, Alexandre Tugirumubano, Sun Ho Go, Hong Gun Kim, and Lee Ku Kwac. "Electromagnetic Interference Shielding Behavior of Magnetic Carbon Fibers Prepared by Electroless FeCoNi-Plating." Materials 14, no. 14 (2021): 3774. http://dx.doi.org/10.3390/ma14143774.

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In this study, soft magnetic metal was coated on carbon fibers (CFs) using an electroless FeCoNi-plating method to enhance the electromagnetic interference (EMI) shielding properties of CFs. Scanning electron microscopy, X-ray diffraction, and a vibrating sample magnetometer were employed to determine the morphologies, structural properties, and magnetic properties of the FeCoNi-CFs, respectively. The EMI shielding behavior of the FeCoNi-CFs was investigated in the frequency range of 300 kHz to 3 GHz through vector network analysis. The EMI shielding properties of the FeCoNi-CFs were significa
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Xia, Xiaodong, and George J. Weng. "Dual percolations of electrical conductivity and electromagnetic interference shielding in progressively agglomerated CNT/polymer nanocomposites." Mathematics and Mechanics of Solids 26, no. 8 (2021): 1120–37. http://dx.doi.org/10.1177/10812865211021460.

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Recent experiments have revealed two distinct percolation phenomena in carbon nanotube (CNT)/polymer nanocomposites: one is associated with the electrical conductivity and the other is with the electromagnetic interference (EMI) shielding. At present, however, no theories seem to exist that can simultaneously predict their percolation thresholds and the associated conductivity and EMI curves. In this work, we present an effective-medium theory with electrical and magnetic interface effects to calculate the overall conductivity of a generally agglomerated nanocomposite and invoke a solution to
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Saboor, Khalid, Jan, et al. "PS/PANI/MoS2 Hybrid Polymer Composites with High Dielectric Behavior and Electrical Conductivity for EMI Shielding Effectiveness." Materials 12, no. 17 (2019): 2690. http://dx.doi.org/10.3390/ma12172690.

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Liquid exfoliated molybdenum disulfide (MoS2) nanosheets and polyaniline (PANI) nanoparticles are dispersed in polystyrene (PS) matrix to fabricate hybrid polymer composites with high dielectric and electromagnetic interference (EMI) shielding behavior. A phase-separated morphology is formed when PANI and MoS2 are incorporated into polystyrene (PS) matrix. An increasing concentration of MoS2 nanoparticles inside PS/PANI (5 wt %) polymer blend forms an interconnected network, resulting in high electrical conductivity and dielectric behavior, making them a suitable candidate for EMI shielding ap
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Reshi, Hilal Ahmad, Shreeja Pillai, Avanish Pratap Singh, S. K. Dhawan, and Vilas Shelke. "Enhanced electromagnetic interference (EMI) shielding in BiFeO3–graphene oxide nanocomposites over X-band frequency region." Journal of Applied Physics 131, no. 17 (2022): 174101. http://dx.doi.org/10.1063/5.0086882.

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BiFeO3–graphene oxide (BFO–GO) nanocomposites were synthesized through ultra-sonication under mild heating, and their electromagnetic interference (EMI) shielding performance was investigated. The nanocomposites preserve the crystalline phase with R3c symmetry as analyzed by Rietveld refinement of x-ray diffraction data. The Raman spectroscopy and x-ray photoelectron spectroscopy studies confirm the formation of structured GO in nanocomposites samples. Magnetic hysteresis curves indicate unsaturated magnetic behavior. The interfacial polarization is dominating in BFO–GO composites as estimated
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Chang, Ming Kuen, Hsin Hong Hsieh, and Siou Jyuan Li. "A Study of Thermal Stability and Electromaganetic Shielding Behavior of Polyaniline-P-Toluene Sulfonic Acid/Montmorillonite Nanocomposites." Applied Mechanics and Materials 52-54 (March 2011): 180–85. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.180.

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Intrinsically conductive polymer-Polyaniline had high conductivity and many other properties, such as environmental stability and rather simple synthesis. In addition, doping with organic acids could enhance its processing, so it had wide range of applications, such as solar cells, antistatic and electromagnetic interference shielding. In this study, the organic amine 1-Dodecylamine (DOA) modification of sodium montmorillonite (NA+-MMT), and conducting polymer / layered silicate salt nanocomposites (PANI-PTSA/DOA-MMT) had been prepared by doping aniline with organic acid (PTSA), then added org
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Zhao, Hui Hui, Ke Ju Ji, Ting Ting Liu, Yin Song Xu, and Zhen Dong Dai. "Electrophoretic Deposition of Foam Ni/CNT Composites and their Electromagnetic Interference Shielding Performance." Applied Mechanics and Materials 461 (November 2013): 436–44. http://dx.doi.org/10.4028/www.scientific.net/amm.461.436.

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Abstract. One of the most effective means to treat electromagnetic pollution is to develop electromagnetic interference shielding materials. Such as Foam nickel, a new lightweight porous material with large surface area, good conductivity and permeability, has drawn much expectation by virtue of its excellent electromagnetic interference shielding(EMI) performance. Recently, with the development of nanometer materials, Tremendous researches also showed that it is an efficient way to combine Foam Ni with nanometer materials for enhanced EMI performance. Herein, in this work, porous nickl/carbon
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Ursache, Ştefan, Romeo Cristian Ciobanu, Vlad Scarlatache, and Andrei Niagu. "Dielectric and Electromagnetic Behavior of Conductive Nanocomposites Polymers: PP/MWCNT Investigations for EMI Applications." Advanced Engineering Forum 8-9 (June 2013): 353–60. http://dx.doi.org/10.4028/www.scientific.net/aef.8-9.353.

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The paper highlights the most important dielectric features for some nanocomposites polymer matrix based on polypropylene (PP) with insertion of carbon nanotubes multi-walled (MWCNTs). The dielectric characteristics analyzed are the real permittivity and dielectric losses of the sample based on PP with 5% insertion of MWCNTs. The measurements are made in a range of frequency between 1 MHz to 3 GHz. The composite form was also analyzed through computer modeling and simulation and electromagnetic properties for EMC shielding applications are also considered. PP/MWCNTs composite with shielding ef
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Çat, Yunus, Veysel Baran, and Süleyman Özçelik. "EMI Shielding Effectiveness and Heater Behavior for Ge IR Windows." physica status solidi (a) 216, no. 14 (2019): 1900005. http://dx.doi.org/10.1002/pssa.201900005.

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Zhang, Yang Fei, Yang Luo, Shu Lin Bai, Man Li, and Zhi Yong Jia. "Shielding Effectiveness of CNTs/SSFs/PA6 Conductive Composites." Materials Science Forum 706-709 (January 2012): 1873–78. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1873.

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A series of carbon nanotube (CNTs) and stainless steel fiber (SSFs) filled nylon 6 (PA6) conductive composites were synthesized for electromagnetic interference (EMI) shielding applications. The materials were prepared by the melt blending method with CNTs weight fraction of 1 and 3 wt% and SSFs of 2, 4, 6, 8, 10, and 12 wt%. The shielding effectiveness, electrical resistance and crystallization behaviors were measured. The results indicate that the shielding effectiveness and electrical properties can be improved by increasing either SSFs or CNTs contents. Higher content of CNTs can bring for
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10

Madinehei, Milad, Scheyla Kuester, Tatiana Kaydanova, Nima Moghimian, and Éric David. "Influence of Graphene Nanoplatelet Lateral Size on the Electrical Conductivity and Electromagnetic Interference Shielding Performance of Polyester Nanocomposites." Polymers 13, no. 15 (2021): 2567. http://dx.doi.org/10.3390/polym13152567.

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Polyester nanocomposites reinforced with graphene nanoplatelets (GnPs) with two different lateral sizes are prepared by high shear mixing, followed by compression molding. The effects of the size and concentration of GnP, as well as of the processing method, on the electrical conductivity and electromagnetic interference (EMI) shielding behavior of these nanocomposites are experimentally investigated. The in-plane electrical conductivity of the nanocomposites with larger-size GnPs is approximately one order of magnitude higher than the cross-plane volume conductivity. According to the SEM imag
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