Microwave absorption study of carbon nano tubes dispersed hard/soft ferrite nanocomposite

Tyagi, Sachin; Verma, Palash; Baskey, Himangshu Bhusan; Agarwala, R. C.; Agarwala, Vijaya; Shami, T. C.

doi:10.1016/j.ceramint.2012.02.034

Cited by 98 publications

(30 citation statements)

References 28 publications

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“…13). Experimentally, a number of studies concerning the control of the microwave properties in different types of hard/soft systems (i.e., thin films, nanocomposites and core/shell nanoparticles) can be found in the literature [45,91,123,124,129,270,271,294,[342][343][344][345][346][347][348][349][350][351][352][353][354][355]. Many studies show that µ' and µ'' depend on the ratio of hard/soft materials both for core/shell nanoparticles [129,342,345], nanocomposites [45,[347][348][349][350][351][352] and bilayers [354].…”

Section: A) B)mentioning

confidence: 99%

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Applications of exchange coupled bi-magnetic hard/soft and soft/hard magnetic core/shell nanoparticles

et al. 2015

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A B S T R A C TThe applications of exchange coupled bi-magnetic hard/soft and soft/hard ferromagnetic core/shell nanoparticles are reviewed. After a brief description of the main synthesis approaches and the core/shell structural-morphological characterization, the basic static and dynamic magnetic properties are presented. Five different types of prospective applications, based on diverse patents and research articles, are described: permanent magnets, recording media, microwave absorption, biomedical applications and other applications. Both the advantages of the core/shell morphology and some of the remaining challenges are discussed.

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Section: A) B)mentioning

confidence: 99%

“…Studies on both hard-soft core/shell nanoparticles and nanocomposites have demonstrated that the main parameters of R L can be controlled by the hard/soft ratio [45,91,123,129,271,294,[342][343][344][345][346][347][348][349][350][351][352].…”

Section: A) B)mentioning

confidence: 99%

Applications of exchange coupled bi-magnetic hard/soft and soft/hard magnetic core/shell nanoparticles

et al. 2015

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“…Absorbers containing traditional absorbents such as carbon black [1], carbon nanotubes [2] and magnetic powders [3][4][5][6] have been widely investigated during the past decades. Although the results demonstrate these materials present excellent absorption performances with a wide bandwidth, their applications at high temperature are limited due to the poor oxidation resistance or demagnetization feature of the absorbents.…”

Section: Introductionmentioning

confidence: 99%

Dielectric and microwave absorption properties of Ti3SiC2/cordierite composite ceramics oxidized at high temperature

Liu

Luo

et al. 2015

Journal of Alloys and Compounds

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“…When specific additives like ferrites or carbonaceous materials are introduced to GFRPs in controlled quantities, they acquire MW absorbing property 4 . However, very high amount of ferrites (approximately 80 wt per cent or above) are to be added to polymer matrix to achieve good MW absorption leading to heavy weight which is not intended for aerospace applications 5 . Carbonaceous materials like milled carbon fibers, carbon black, do not add extra weight yet give required MW absorption ability by acting as dielectric lossy material 2 .…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Evaluation of Low Density Glass-Epoxy Composites for Microwave Absorption Applications

et al. 2017

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<p class="p1">In the present work, fabrication and evaluation of low density glass – epoxy (LDGE) composites suitable for absorbing minimum 80 per cent of incident microwave energy in 8 GHz to 12 GHz (X-band) is reported. LDGE composites having different densities were fabricated using a novel method of partially replacing conventional S-glass fabric with low density glass (LDG) layers as the reinforcement materials. Flexural strength, inter laminar shear strength and impact strength of the prepared LDGE composites were evaluated and compared with conventional High density glass-epoxy (HDGE) composites to understand the changes in these properties due to replacement of S-glass fabrics with LDG layers. To convert LDGE structures to radar absorbing structures controlled quantities of milled carbon fibers were impregnated as these conducting milled carbon fibers can act as dielectric lossy materials which could absorb the incident microwave energy by interfacial polarisation. Electromagnetic properties namely loss tangent and reflection loss of carbon fiber impregnated LDGE composites were evaluated in 8 GHz -12 GHz frequency region and compared with HDGE composites. It was observed that both LDGE and HDGE composites have shown loss tangent values more than 1.1 and minimum 80 per cent absorption of incident microwave energy. Thus the results indicates that, LDGE composites can show EM properties on par with HDGE composites. Furthermore these LDGE composite could successfully withstand the low velocity impacts (4.5 m/s) with 50 J incident energy. Due to their ability to show good mechanical properties and light weight, LDGE composites can be used as a replacement for conventional HDGE composites to realise radar absorbing structures.</p>

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Microwave absorption study of carbon nano tubes dispersed hard/soft ferrite nanocomposite

Cited by 98 publications

References 28 publications

Applications of exchange coupled bi-magnetic hard/soft and soft/hard magnetic core/shell nanoparticles

Applications of exchange coupled bi-magnetic hard/soft and soft/hard magnetic core/shell nanoparticles

Dielectric and microwave absorption properties of Ti3SiC2/cordierite composite ceramics oxidized at high temperature

Fabrication and Evaluation of Low Density Glass-Epoxy Composites for Microwave Absorption Applications

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