Thickness independent microwave absorption performance of La-doped BaFe12O19 and polyaniline composites

Tran, N.; Lee, M.Y.; Jeong, W.H.; Phan, The‐Long; Tuan, N.Q.; Lee, Bo Wha

doi:10.1016/j.jmmm.2021.168299

Cited by 25 publications

(5 citation statements)

References 64 publications

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“…As the particle size decreases, the proportion of surface atoms increases remarkably. The superficial atoms have high activity, and they can be polarized and magnetized in an external electromagnetic field [36][37][38][39][40]. It can also consume electromagnetic energy by converting it into heat.…”

Section: The Reflection Lossmentioning

confidence: 99%

Synthesis and electromagnetic characteristics of MnFe₂O₄/TiO₂ composite material

Jiang

Wei

Jiao

2022

Mater. Res. Express

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The development of absorbing materials with a wide frequency band is still challenging. Here we successfully fabricated the MnFe2O4/TiO2 composite powder through the micro-emulsion method. We characterized the phase structures, morphologies, particle size, and chemical compositions of MnFe2O4/TiO2 composite powders, and measured the microwave absorption capacity as well. The MnFe2O4/TiO2 composite powders present a coating structure. The microwave absorption test revealed that the maximum microwave loss reaches -38.6 dB at a thickness of 3.05 mm and the corresponding bandwidth is about 4 GHz in the ranges from 7.8 to11.4 GHz. The excellent performance is attributed to the high surface area endowed by the coating structure. This research provided an alternative route for the preparation of high bandwidth electromagnetic wave absorbing materials.

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Section: The Reflection Lossmentioning

confidence: 99%

Synthesis and electromagnetic characteristics of MnFe₂O₄/TiO₂ composite material

Jiang

Wei

Jiao

2022

Mater. Res. Express

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“…The thickness of the absorber has a tremendous influence on the microwave absorption properties of the material. Tran et al [ 61 ] prepared La‐doped BaFe 12 O 19 with concentrations of 0, 0.1, 0.3, and 0.5 M by the coprecipitation method and then mixed 10 wt% La‐doped BaFe 12 O 19 with polyaniline to produce La‐BaM/PANI composites. When the thickness of the absorbing layer varies from 1.75 to 3.50 mm, La doping and polyaniline composites had vital significance in maintaining the RL value of composite material.…”

Section: Binary Ferrite Composite Absorbing Materialsmentioning

confidence: 99%

“…Reproduced with permission. [61] Copyright 2021, Elsevier. oxide nanoparticles, polymers, or the construction of 3D hollow structures, has been proved to be an effective strategy to solve this problem.…”

Section: Ferrite/mxene Absorbing Materialsmentioning

confidence: 99%

Recent Research Progress of Ferrite Multielement Microwave Absorbing Composites

et al. 2022

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With the extensive application of electrical and wireless equipment, several electromagnetic pollution‐related issues have emerged. Therefore, the manufacturing of absorbing materials has become important to electromagnetic pollution. Ferrite is a common absorbing material; its single absorbing mechanism and narrow absorbing frequency band resist the wider usage as an ideal absorbing material. Adding different materials to ferrite has become a popular way to enhance its microwave absorption properties. Herein, the recent research on ferrite multicomponent microwave absorbing composites is summarized. For ferrite binary composite absorbing materials, the research progress of ferrite and graphene, carbon nanotubes, carbon fiber and other carbon materials, ferrite and polypyrrole, polyaniline and other polymer materials, and ferrite and MXene composites is introduced. In addition, the advancement of ferrite ternary absorbent materials research is also discussed. The growing development trend of ferrite composite absorbing materials is finally summed up, and the prospects of fabricating the “thin, light, wide, and strong” ferrite absorbing materials are put forward.

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“…[215] Efforts have been made to enhance the magnetic characteristics of hexaferrite by cationic substitution to meet a variety of applications. [148,216] These includes efforts on altering the intrinsic properties of hexaferrites by replacing with either single or multiple trivalent metal ions such as La 3+ , [217][218][219][220][221] Tb 3+ , [222,223] Nd 3+ , [138][139][140][224][225][226] Eu 3+ , [227] Dy 3+ , [228,229] Sm 3+ , [230,231] Cr 3+ , [232,233] Al 3+ , [185,186,234,235] Gd 3+ , [236][237][238] Sc 3+ , [239] Er 3+ , [240][241][242] Pr 3+ , [243] Yb 3+ , [244] Ce 3+ , [245] La 3+ -Pr 3+ , [246] La 3+ -Nd 3+ , [247] Nd 3+ -Sm 3+ , [248] Nb 3+ -Y 3+ , [249] La 3+ -Ce 3+ , [250] Er 3+ -Cr 3+ , [251] Dy 3+ -Nd 3+ -Pr 3+ [252] or a suitable mix of divalent and trivalent ions such as Tb 3+ -Mn 2+ , …”

Section: Properties Of Hexagonal Ferritesmentioning

confidence: 99%

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Mohammed

Mohammed²,

Srivastava

2022

Cryst. Res. Technol.

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With the fast growth of wireless communication technology in high‐frequency ranges, electromagnetic (EM) interference has become a growing concern that has drawn international attention. The development of materials that can absorb EM radiation is a crucial solution. This review provides a detailed overview of ferrites, specifically hexagonal ferrites and their composites for microwave (MW) absorption. It examines hexagonal ferrite classifications based on the stacking order of their fundamental blocks and their synthesis methods and strategies for improving their magnetic properties. On the other hand, this review included a detailed examination of hexagonal ferrites–conducting polymer, hexagonal ferrites–2D materials, and hexagonal ferrite–other nanomaterials composites for MW absorption applications. Enhancing MW absorption in hexagonal ferrites‐based microwave absorption materials (MAMs) regulates their EM characteristics, improves impedance matching, and creates a diversity of loss mechanisms. In addition, the limitations, challenges, and opportunities of hexagonal ferrites‐based MAMs are discussed, which will be helpful to those working in related areas. As a general application potential, it is worth mentioning that, as a result of recent promising findings in the synthesis of hexagonal ferrites‐based composites, hexaferrite‐based composites are suitable devices in the area of microwave absorption.

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Thickness independent microwave absorption performance of La-doped BaFe12O19 and polyaniline composites

Cited by 25 publications

References 64 publications

Synthesis and electromagnetic characteristics of MnFe₂O₄/TiO₂ composite material

Synthesis and electromagnetic characteristics of MnFe₂O₄/TiO₂ composite material

Recent Research Progress of Ferrite Multielement Microwave Absorbing Composites

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

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Thickness independent microwave absorption performance of La-doped BaFe12O19 and polyaniline composites

Cited by 25 publications

References 64 publications

Synthesis and electromagnetic characteristics of MnFe2O4/TiO2 composite material

Synthesis and electromagnetic characteristics of MnFe2O4/TiO2 composite material

Recent Research Progress of Ferrite Multielement Microwave Absorbing Composites

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

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Synthesis and electromagnetic characteristics of MnFe₂O₄/TiO₂ composite material

Synthesis and electromagnetic characteristics of MnFe₂O₄/TiO₂ composite material