A flexible microwave absorber based on nickel ferrite nanocomposite

Sunny, Vijutha; Kurian, Philip; Mohanan, P.; Joy, P.A.; Anantharaman, M. R.

doi:10.1016/j.jallcom.2009.09.077

Cited by 144 publications

(60 citation statements)

References 24 publications

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“…They are in demand for reducing radiation reflection as well as providing interference shielding (EMI electromagnetic interference shielding) and protection [1][2][3][4][5]. Flexibility, mouldability and environmental resistance are the main factors to be considered in designing an absorber along with a large absorption capability and wide band width.…”

Section: Introductionmentioning

confidence: 99%

A microwave absorber based on strontium ferrite–carbon black–nitrile rubber for S and X-band applications

Vinayasree

Soloman²,

Sunny³

et al. 2013

Composites Science and Technology

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110

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Section: Introductionmentioning

confidence: 99%

A microwave absorber based on strontium ferrite–carbon black–nitrile rubber for S and X-band applications

Vinayasree

Soloman²,

Sunny³

et al. 2013

Composites Science and Technology

Self Cite

110

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“…Introducing materials that can absorb electromagnetic waves is an alternative solution to eliminating EMI effects. Some materials, such as radar absorbing materials (RAM) (Mohit et al, 2014), have been reported to exhibit electromagnetic absorption characteristics (Song et al, 2010;Mohit et al, 2014;Sunny et al, 2010) even in the microwave frequency range. To be used in this capacity, electromagnetic wave absorbers must possess the following intrinsic characteristics: permeability (magnetic loss properties) and permittivity (dielectric loss properties).…”

Section: Introductionmentioning

confidence: 99%

“…Some studies have reported on absorbers based on doped ferrite magnetic materials (Adi & Manaf, 2012;Duggal & Aul, 2014;Kiani et al, 2014). Likewise, absorbers based on doped dielectric properties have also been found to have absorbing characteristics (Mohit et al, 2014), and tuneable electromagnetic wave absorbers based on combined magnetic and dielectric properties through a composite structure have also been developed (Sunny et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Absorption Characteristics of the Electromagnetic Wave and Magnetic Properties of the La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1–0.8) Perovskite System

Adi¹,

Manaf²,

Ridwan³

2017

IJTech

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This paper reports on the magnetic properties and electromagnetic characterization of La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1-0.8). The La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1-0.8) materials were prepared using a mechanical alloying method. All the materials were made of analytical grade precursors of BaCO3, Fe2O3, MnCO3, TiO2, and La2O3, which were blended and mechanically milled in a planetary ball mill for 10h. The milled powders were compacted and subsequently sintered at 1000°C for 5h. All the sintered samples showed a fully crystalline structure, as confirmed using an X-ray diffractometer. It is shown that all samples consisted of LaMnO3 based as the major phase with the highest mass fraction up to 99% found in samples with x < 0.3. The mass fraction of main phase in doped samples decreased in samples with x > 0.3. The hysteresis loop derived from magnetic properties measurement confirmed the present of hard magnetic BaFe12O19 phase in all La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1-0.8) samples. The results of the electromagnetic wave absorption indicated that there were three absorption peaks of ~9 dB, ~8 dB, and ~23.5 dB, respectively, at respective frequencies of 9.9 GHz, 12.0 GHz, and 14.1 GHz. After calculations of reflection loss formula, the electromagnetic wave absorption was found to reach 95% at the highest peak frequency of 14.1 GHz with a sample thickness of around 1.5 mm. Thus, this study successfully synthesized a single phase of La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1-0.8) for the electromagnetic waves absorber material application.

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“…Recently, NiFe2O4-based magnetic nanocomposites have attracted increasing interest because of their unique properties and potential applications. Much effort has been devoted to this area, and the developed nanocomposites have a wide range of applications, including DNA separation [15] , antimicrobial agents [16][17][18][19], microwave absorbers [20,21], and photocatalysts [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

Jin

et al. 2012

Sen-i Gakkaishi

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We report a simple hydrothermal synthesis of carbon nanotube/nickel ferrite (CNT/NiFe2O4) nanocomposites. The CNTs used in this work were pretreated with nitric acid. The evolution of the synthesis of the CNT/NiFe2O4 nanocomposites was studied using X-ray photoelectron spectroscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and transmission electron microscopy. The results suggest that NiFe2O4 nanoparticles were synthesized in situ on the CNT surface. Vibrating-sample magnetometer measurements showed that the CNT/NiFe2O4 nanocomposites exhibit typical soft ferromagnetic behavior with saturation magnetization (Ms) of about 24 emu/g.

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A flexible microwave absorber based on nickel ferrite nanocomposite

Cited by 144 publications

References 24 publications

A microwave absorber based on strontium ferrite–carbon black–nitrile rubber for S and X-band applications

A microwave absorber based on strontium ferrite–carbon black–nitrile rubber for S and X-band applications

Absorption Characteristics of the Electromagnetic Wave and Magnetic Properties of the La0.8Ba0.2FexMn½(1-x)Ti½(1-x)O3 (x = 0.1–0.8) Perovskite System

Hydrothermal Synthesis of Carbon Nanotube/Nickel Ferrite Nanocomposites

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