Effect of magnetic iron(III) oxide particle addition with MWCNTs in kenaf fibre-reinforced epoxy composite shielding material in ‘E’, ‘F’, ‘I’ and ‘J’ band microwave frequencies

Merizgui, Tahar; Hadjadj, Abdechafik; Kious, Mecheri; Prakash, Ved; Gaoui, Bachir

doi:10.1088/2053-1591/aaf9de

Cited by 35 publications

(16 citation statements)

References 17 publications

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“…The authors confirmed that the addition of the combined form of copper-iron oxide particle on the epoxy matrix gives better shielding than composite contains only copper as filler. Similarly, Tahir et al [6] concluded the role of magnetic particle along with semi-conductive MWCNTs in kenaf-epoxy composite. The results outcome revealed that combined form of MWCNTs and magnetite particles offered better shielding effect than other composites.…”

Section: Introductionmentioning

confidence: 90%

“…There are several researchers have investigated the polymer-based microwave shielding materials with conductive and magnetic particles [3,4], But in polymeric shielding material the flexibility and deploy-ability could be a bigger issue due to the complexity in structure of electronic devices [5]. If the shielding material is flexible and easy to shape change they could be effectively deploy in high complex electronic devices [6]. There are several research were done on thermo and thermoset plastic based shielding material whereas the natural rubber based shielding material research is less.…”

Section: Introductionmentioning

confidence: 99%

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Role of Magnetite (Fe₃O₄)-Titania (TiO₂) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies

Prabhahar¹,

R³

2020

Mater. Res. Express

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This current work aims to prepare a flexible elastomeric microwave shielding composite material with good mechanical and thermal properties by dispersing Fe 3 O 4 and titania hybrid nano-particles. The primary aim of this research work is to prepare a high strength and high thermal stable flexible natural rubber composite with higher wave attenuation coefficient against 'X (8-12 GHz)' and 'Ku (12-18 GHz)' band microwave frequencies. The Fe 3 O 4 -Titania hybrids were prepared using low energy ball milling and the hybridization effect was confirmed using transmission electron spectroscopy. The prepared Fe 3 O 4 -Titania hybrids were surface-treated using 3-Aminopropyltriethoxysilane via wet solution method to avoid agglomeration. The natural rubber flexible composite was made by two-roll milling with recommended process parameters. The mechanical and thermal results showed improved tensile strength, modulus and mass decomposition. The highest tensile strength of 60 MPa was observed for composite contains 1.0 vol% of Fe 3 O 4 -TiO 2 particles. Similarly, the highest thermal stability of 385°C is observed for composite contain Fe 3 O 4 -TiO 2 particles. The X and Ku band microwave attenuation behaviour revealed the highest attenuation of 28.1 dB for 1.0 vol% of Fe 3 O 4 -TiO 2 particle dispersed rubber composite in Ku band frequency. These mechanically toughened thermally stable and high microwave attenuation flexible composites could be used as EMI shielding material at antennae and other telecommunication devices where electromagnetic wave interference creates crucial issues.

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Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Role of Magnetite (Fe₃O₄)-Titania (TiO₂) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies

Prabhahar¹,

R³

2020

Mater. Res. Express

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“…Such behavior is very similar to the role played by carbon fiber in composite material. According to equation (5) and (6), this efficiency varies also proportionally to the electrical copper conductivity. This allows us to conclude that this latter is also proportional to the plastic strain rate applied to the material.…”

Section: Resultsmentioning

confidence: 99%

“…The third mechanism of attenuation of electromagnetic interference is the multiple reflections; this mechanism depends on the physical properties and the geometric shape effect of the shielding material. When the material is thicker, this third mechanism can be neglected [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Influence of Plastic Deformation of Copper on the Behavior of Electromagnetic Shielding

Elhadi¹,

Hadjadj²,

Gaoui³

et al. 2019

ACSM

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Nowadays, one of the main reasons for increasing material performances is the need to reduce electromagnetic interference (EMI) generated by high-frequency electronic circuits, which is a serious problem in terms of equipment performances. For this purpose, copper is one of the most used materials for shielding applications. Plastic deformation at the macroscopic scale generates at the microscopic scale many moving dislocations (internal stresses) affecting the efficiency of the electromagnetic shielding. However, the plastic deformation which affects the electrical properties ensuring the shielding properties is still badly known and should be more studied and constitutes a promising research field. The main objective of this work is to study the effect of the copper plastic deformation on its electromagnetic shielding efficiency in the ]0-1GHz] frequency range. A series of electromagnetic shielding experiments was carried out by means of an Electro Magnetic Dual Transverse Cell (DTEM), on copper samples with a purity level of 99 % i) without plastic deformation ii) deformed with a rate of 2 % and 3 %. The results obtained clearly shown the variation of the electromagnetic shielding efficiency as a function of the copper plastic deformation rate.

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“…where, |Sij| 2 represents the power reflection (i=j) and transmission (i ≠ j) from port i to port j. So the total resistance of the composite can be obtained as [10][11][12][13]:…”

Section: Emi Shielding Modelmentioning

confidence: 99%

Impact of Temperature Variation on the Electromagnetic Shielding Behavior of Multilayer Shield for EMC Applications

Merizgui¹,

Hadjadj²,

Kious³

et al. 2019

RCMA

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This paper attempts to disclose how temperature variation affects the electromagnetic shielding of a multilayer composite made of copper (Cu) fibers surrounded by silicon (Si). The model of the composite was fabricated by physical vapor deposition method, and tested with the temperature rising from room temperature (RT), 50º C, 85º C to 110º C. Under these temperatures, several electromagnetic shielding parameters of the composite were measured in various operating microwave frequencies (E, F, I and J bands). Among them, dielectric permittivity was acquired by LCR tester, magnetic permeability was measured by vibrating sample magnetometer (VSM), and the electromagnetic (EM) wave attenuation was recorded by typical microwave test bench. The results show that the composite had an EMI shielding of 20dB at 85º and 100dB at the RT; the reflection loss of the composite (volume fraction: 0.32) was also 100dB at the RT. Thus, the temperature rise suppresses the reflection loss; the composite has better electromagnetic shielding effect at the RT than at elevated temperatures; the volume faction enhances the wave attenuation of the composite. The results provide a good reference for the design of stable electromagnetic shielding materials at elevated temperatures.

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Effect of magnetic iron(III) oxide particle addition with MWCNTs in kenaf fibre-reinforced epoxy composite shielding material in ‘E’, ‘F’, ‘I’ and ‘J’ band microwave frequencies

Cited by 35 publications

References 17 publications

Role of Magnetite (Fe₃O₄)-Titania (TiO₂) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies

Role of Magnetite (Fe₃O₄)-Titania (TiO₂) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies

Influence of Plastic Deformation of Copper on the Behavior of Electromagnetic Shielding

Impact of Temperature Variation on the Electromagnetic Shielding Behavior of Multilayer Shield for EMC Applications

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Effect of magnetic iron(III) oxide particle addition with MWCNTs in kenaf fibre-reinforced epoxy composite shielding material in ‘E’, ‘F’, ‘I’ and ‘J’ band microwave frequencies

Cited by 35 publications

References 17 publications

Role of Magnetite (Fe3O4)-Titania (TiO2) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies

Role of Magnetite (Fe3O4)-Titania (TiO2) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies

Influence of Plastic Deformation of Copper on the Behavior of Electromagnetic Shielding

Impact of Temperature Variation on the Electromagnetic Shielding Behavior of Multilayer Shield for EMC Applications

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Product

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Role of Magnetite (Fe₃O₄)-Titania (TiO₂) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies

Role of Magnetite (Fe₃O₄)-Titania (TiO₂) hybrid particle on mechanical, thermal and microwave attenuation behaviour of flexible natural rubber composite in X and Ku band frequencies