Mössbauer spectroscopy studies on the particle size distribution effect of Fe–B–P amorphous alloy on the microwave absorption properties

Lv, Yuhua; Zhang, Yanhui; Zhang, Jian; Li, Bin

doi:10.1007/s41365-020-0734-8

Cited by 6 publications

(3 citation statements)

References 35 publications

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“…There was no obvious crystal peak, which is an important characteristic of amorphous particles. Figure 2(b) shows the Mössbauer spectra of the samples at room temperature, which corresponded to a typical amorphous Mössbauer spectra [17]. The SAED patterns of the Fe-B particles shown in figure 2(c) reveal that the particles were amorphous in nature.…”

Section: Characteristics Of Fe-b Particlesmentioning

confidence: 86%

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Microwave absorption properties of amorphous Fe–B particle composites in K band

Li¹,

Zhang²,

He³

et al. 2021

J. Phys. D: Appl. Phys.

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In this study, spherical amorphous Fe–B submicron particles were synthesized via aqueous chemical reduction, and a composite with a mass fraction of 80% was prepared by compounding them with polyurethane. By measuring the electromagnetic parameters and calculating the microwave absorption properties, we found that the composite had excellent absorption performance in a frequency range of 18–26.5 GHz. When the absorber was 0.88 mm thick, the reflection loss (RL) peak reached a maximum (−47.94 dB) with a bandwidth (RL < −10 dB) of 5.01 GHz. The absorption mechanism of the composite in the K band was also investigated. The results showed that the Fe–B particle composite effectively reduced the absorber’s thickness, maintaining a good absorption performance in the K band.

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Section: Characteristics Of Fe-b Particlesmentioning

confidence: 86%

“…Fe-B and Fe-B-P amorphous particles with high saturation magnetization were reported by Kiyotaka Furuta and Kazuaki Shimba et al [14][15][16]. Inspired by research, submicron amorphous Fe-B particles with high saturation magnetization and resistivity may be suitable absorption materials for K band [15][16][17].…”

Section: Introductionmentioning

confidence: 94%

Microwave absorption properties of amorphous Fe–B particle composites in K band

Li¹,

Zhang²,

He³

et al. 2021

J. Phys. D: Appl. Phys.

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“…The dielectric loss tangent (tanδ ε ) and the magnetic loss tangent (tanδ µ ) indicate how materials damper electromagnetic waves through electrical and magnetic impacts, respectively [77].…”

Section: Loss Tangentmentioning

confidence: 99%

Structural, Electromagnetic and Microwave Properties of Magnetite Extracted from Mill Scale Waste via Conventional Ball Milling and Mechanical Alloying Techniques

et al. 2021

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This study presents the utilization of mill scale waste, which has attracted much attention due to its high content of magnetite (Fe3O4). This work focuses on the extraction of Fe3O4 from mill scale waste via magnetic separation, and ball milling was used to fabricate a microwave absorber. The extracted magnetic powder was ground-milled using two different techniques: (i) a conventional milling technique (CM) and (ii) mechanical alloying (MM) process. The Fe3O4/CM samples were prepared by a conventional milling process using steel pot ball milling, while the Fe3O4/MM samples were prepared using a high-energy ball milling (HEBM) method. The effect of milling time on the structural, phase composition, and electromagnetic properties were examined using X-ray diffraction (XRD) and a vector network analyzer (VNA). XRD confirmed the formation of magnetite after both the magnetic separation and milling processes. The results revealed that Fe3O4 exhibited excellent microwave absorption properties because of the synergistic characteristics of its dielectric and magnetic loss. The results showed that the Fe3O4/CM particle powder had a greater absorption power (reflection loss: <−10 dB) with 99.9% absorption, a minimum reflection loss of −30.83 dB, and an effective bandwidth of 2.30 GHz for 2 mm thick samples. The results revealed the Fe3O4/MM powders had higher absorption properties, including a higher RL of −20.59 dB and a broader bandwidth of 2.43 GHz at a matching thickness of only 1 mm. The higher microwave absorption performance was attributed to the better impedance matching property caused by the porous microstructure. Furthermore, the magnetite, Fe3O4 showed superior microwave absorption characteristics because of the lower value of permittivity, which resulted in better impedance matching. This study presents a low-cost approach method by reutilizing mill scale waste to fabricate a high purity crystalline Fe3O4 with the best potential for designing magnetic nano-sized based microwave absorbers.

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Development of a large nanocrystalline soft magnetic alloy core with high μ′pQf products for CSNS-II

et al. 2022

NUCL SCI TECH

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Mössbauer spectroscopy studies on the particle size distribution effect of Fe–B–P amorphous alloy on the microwave absorption properties

Cited by 6 publications

References 35 publications

Microwave absorption properties of amorphous Fe–B particle composites in K band

Microwave absorption properties of amorphous Fe–B particle composites in K band

Structural, Electromagnetic and Microwave Properties of Magnetite Extracted from Mill Scale Waste via Conventional Ball Milling and Mechanical Alloying Techniques

Development of a large nanocrystalline soft magnetic alloy core with high μ′pQf products for CSNS-II

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