Composite electromagnetic interference shielding materials for aerospace applications

Klemperer, C.J. von; Maharaj, Denver.

doi:10.1016/j.compstruct.2009.04.013

Cited by 171 publications

(99 citation statements)

References 10 publications

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“…von Klemperer and Maharaj [29] added copper and aluminium powder fillers to carbon fibre epoxy laminates to improve the electromagnetic shielding capacity of the composite panels. Blast tests on the laminates [30] showed that the laminates with filler particles outperformed their plain composite counterparts, although the margin was small.…”

Section: The Blast Performance Of Plain Compositesmentioning

confidence: 99%

“…In addition, there is also the possibility of tailoring the properties of plain composites further by adding particles (such as metallic fillers [29,30], carbon nanotubes [31] or urea formaldehyde [32]) to the composite layers to create multifunctional and selfhealing materials. von Klemperer and Maharaj [29] added copper and aluminium powder fillers to carbon fibre epoxy laminates to improve the electromagnetic shielding capacity of the composite panels.…”

Section: The Blast Performance Of Plain Compositesmentioning

confidence: 99%

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The blast response of composite and fibre-metal laminate materials used in aerospace applications

Langdon

Cantwell

2015

Polymer Composites in the Aerospace Industry

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Section: The Blast Performance Of Plain Compositesmentioning

confidence: 99%

Section: The Blast Performance Of Plain Compositesmentioning

confidence: 99%

The blast response of composite and fibre-metal laminate materials used in aerospace applications

Langdon

Cantwell

2015

Polymer Composites in the Aerospace Industry

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“…Nevertheless, traditional shielding metals, such as copper, nickel, steel and permalloy, suffer from their heavy weight. Hence, the conductive polymer-matrix composites have been developed to replace or supplement traditional shielding metals [6,7]. In spite of their lightweight and easy control of conductivity, most of polymer-matrix composites are not suited to structural applications due to poor mechanical strength [3,5].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electromagnetic Interference Shielding of Mg–Zn–Zr Alloy by Ce Addition

Chen

Liu

et al. 2015

Acta Metall. Sin. (Engl. Lett.)

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The effects of Ce addition on microstructure and electromagnetic interference (EMI) shielding response of Mg6Zn-0.5Zr (ZK60) alloy have been investigated. Ce addition resulted in grain refinement and higher density of Mg-Zn-Ce and MgZn 2 intermetallic particles in the alloy. In particular, this was substantially remarkable as the addition of Ce was up to 1.0 wt%. It is interesting to note that as-extruded ZK60 alloy with 1.0 wt% Ce addition exhibited an EMI shielding effectiveness (SE) exceeding 70 dB at the frequency range of 30-1,500 MHz, which was significantly higher than that of ZK60 alloy without Ce addition and reached the requirement of high protection. The superior SE was probably related to the increased reflection and multiple reflection of electromagnetic radiation induced by Ce addition. Direct artificial aging at 150°C for 25 or 50 h led to a further increase of 7-10 dB in the SE of the alloy with 1.0 wt% Ce addition. The advantages of excellent shielding capacity and favorable mechanical strength make the Mg-Zn-Zr-Ce alloy an attractive shielding candidate material for a variety of technological applications.

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“…As the absorption loss is proportional to shield thickness and is a function of and [9] and by identification with (6), we can say that the first term of (30) represents the absorption loss and the second is the sum of reflection loss and internal multiple reflections .…”

Section: Single Shieldmentioning

confidence: 99%

Crossover Frequency and Transmission-Line Matrix Formalism of Electromagnetic Shielding Properties of Laminated Conductive Sheets

Benhamou

Hamouni

Ould-Kaddour

2018

AEM

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This paper proposes an approach to calculate the crossover frequency of each layer in the multilayered shield and subsequently that of structure constructed by n layers. This important frequency provides a useful approximation for field penetration in a conductor. It is used in a wide variety of calculations. It is in this context that a simplification of the transmission-line matrix formalism for laminated conductive sheets is done using this frequency. Two ranges of frequency are considered: lower and higher than the crossover frequency. Simples formulas and easy to use of the reflection loss, the internal reflection, the absorption loss and the electromagnetic shielding effectiveness of laminated shield are obtained. Analysis is carried out for the study of two shields: i) single shield of carbon nanotube polymer composites (CNTs), ii) multilayered shield constructed with Nickel-carbon nanotube polymer composites-Aluminum (Ni-CNTs-Al).

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Composite electromagnetic interference shielding materials for aerospace applications

Cited by 171 publications

References 10 publications

The blast response of composite and fibre-metal laminate materials used in aerospace applications

The blast response of composite and fibre-metal laminate materials used in aerospace applications

Enhanced Electromagnetic Interference Shielding of Mg–Zn–Zr Alloy by Ce Addition

Crossover Frequency and Transmission-Line Matrix Formalism of Electromagnetic Shielding Properties of Laminated Conductive Sheets

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