Microwave absorption properties of nanostructure composite particles based on SrFe12O19

Fathi, Mehdad; Mehdipour, Mostafa; Shokrollahi, H.

doi:10.1007/s41779-019-00414-7

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…Magnetic ceramics or ferrites are attractive microwave absorbing substances due to their noticeable different resistance, considerable electrical resistivity, exceptional flexibility and facile preparation, low density, low costs and great magnetic losses. Among these ferrites, Ba-based ferrites have been widely used as a result of their normal ferromagnetic distinctive and possible operation in microwave absorption devices [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Investigation of microwave absorption properties of multi-layer nanostructure BaFe12O19/epoxy composites

Fathi

Mehdipour

Shokrollahi

2020

J Mater Sci: Mater Electron

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This paper has investigated the absorption properties of multi-layer BaFe 12 O 19/ epoxy composites. Various Ba-ferrites were synthesized by the co-precipitation method followed by high-energy ball milling for the homogenizing and milling purposes. The microstructural, structural, loss-related behavior and magnetic properties were examined by the X-ray diffractometer, field-emission scanning electron spectroscope, network analyzer, and vibrating-sample magnetometer, respectively. The material indicated an enhancement in the saturation magnetization from 35.45 to 57.83 emu/g by increasing the heat-treating temperature (HT). The effects of the type and number of layers on microwave absorption behavior were obtained from the X-range (8 to 12 GHz). The ferromagnetic resonance and transmit-line theories were also employed to analyze these factors on the microwave absorption. These microwave absorbers were modeled and simulated by MATLAB. The simulations were carried out from 8 to 12 GHz to analyze the absorbers performance. Based upon these theories and experimental data, the microwave absorption can be altered solely by changing the materials between the layers. For instance, the maximum peak was increased from − 3 to − 15 dB by altering the as-synthesized ferrite powders to the completed ferrite powders (BaFe 12 O 19). Moreover, there was a sufficient match between experimental data and theoretical results.

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Section: Introductionmentioning

confidence: 99%

Investigation of microwave absorption properties of multi-layer nanostructure BaFe12O19/epoxy composites

Fathi

Mehdipour

Shokrollahi

2020

J Mater Sci: Mater Electron

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“…Nanocomposite microwave absorbers allow the acquisition of superior MWA properties not feasible with single components. Fathi et al [399] R L of the nanostructure composite particles reached −30 dB at 9.8 GHz for SrFe 12 O 19 /NiFe 2 O 4 . Li et al [400] prepared a composite of BaM with flaked CIP and Fe 50 Ni 50 .…”

Section: Hexagonal Ferrites and Other Nanomaterials Compositementioning

confidence: 93%

“…[ 398 ] Fathi et al. [ 399 ] R L of the nanostructure composite particles reached −30 dB at 9.8 GHz for SrFe 12 O 19 /NiFe 2 O 4 . Li et al [ 400 ] prepared a composite of BaM with flaked CIP and Fe 50 Ni 50 .…”

Section: Microwave Absorption Performancementioning

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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“…However, to obtain a ferrite with a high cut-off frequency, the effective anisotropy field must be increased. As M-type SrFe 12 O 19 is a typical hexagonal ferrite, with a high magnetocrystalline anisotropy field that is primarily used as a permanent magnet material due to its high coercive force, relatively high saturation magnetization, and high Curie temperature, as well as its high dielectric loss, good chemical stability, and corrosion resistance, it has attracted the attention of researchers, especially, about their electromagnetic and microwave absorption properties [Nie et al, 2010;Wang et al, 2001;Ghasemi et al, 2006;Zi et al, 2009;Fathi et al, 2020]. Due to the thermal impacts of the devices or particular working requirements for high-temperature, microwave devices typically run at temperatures greater than room temperature.…”

Section: Introductionmentioning

confidence: 99%

Temperature denpendent microwave absorption properties of SrFe12O19 in X-band

Qiao

Shi

et al. 2022

Front. Mater.

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Researchers are currently focusing on the electromagnetic and microwave absorption properties of SrFe12O19 hexaferrites. The high-temperature absorption (more than 573 K) is highly demanded in various including the military, national defense, aviation, and other fields. SrFe12O19 has good thermal stability at high temperature, and it has large coercivity, which also determines that it has good stability in magnetic properties and is not easy to be affected by the environment. Thus, it is necessary to explore the magnetic characteristics of SrFe12O19 hexaferrites at high temperatures. SrFe12O19 hexaferrites were fabricated by the molten salt method and their microstructure, high-temperature electromagnetic properties, and microwave properties were investigated in detail. The complex permeability and permittivity of SrFe12O19 were measured at varying temperatures (293–673 K) in the X band. While the real parts of permittivity and permeability increased with the increasing temperature, the imaginary parts of permittivity and permeability did not change significantly with increasing temperature. The calculated absorption properties displayed that as temperature increased from 293K to 623K, the frequency of the RL peaks moved to a low-frequency direction, and the sample’s minimum value of RL could be smaller than -10dB across the whole X band. The results indicate that SrFe12O19 particles have better absorption properties and can be used in high-temperature environments. These particles can be possibly used in many particular fields.

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Microwave absorption properties of nanostructure composite particles based on SrFe12O19

Cited by 10 publications

References 17 publications

Investigation of microwave absorption properties of multi-layer nanostructure BaFe12O19/epoxy composites

Investigation of microwave absorption properties of multi-layer nanostructure BaFe12O19/epoxy composites

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Temperature denpendent microwave absorption properties of SrFe12O19 in X-band

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