Electromagnetic wave absorption properties of core double-shell structured α-Fe(Si)@Fe3O4@SiO2 composites

Hou, Youming; Li, Binchuan; Chen, Jianshe; Shen, Xiangqian; Wang, Bo; Liu, Kuiren; Wei, Shicheng; He, Xiaocai; Li, Da; Han, Qing

doi:10.1016/j.apsusc.2023.156345

Cited by 22 publications

(5 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The XPS core level spectra of the as-built sample (no. 7) on Fe, Si and O elements, shown in Figure 7(c-e), clearly exhibited peaks assigned to oxidised species, including Fe 2+ , Fe 3+ and Si 4+ [30,31]. Moreover, these oxidised species were consistent with the oxidation numbers of the Fe 7 SiO 10 phase, which were observed in XRD patterns.…”

Section: Resultssupporting

confidence: 59%

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

Ji,

Shim,

Kim

et al. 2023

Powder Metallurgy

View full text Add to dashboard Cite

Owing to its processing freedom, additive manufacturing has emerged as a promising material processing method for Fe-Si alloys. In this process, the melt pool fused by selective laser undergoes rapid cooling, which results in non-equilibrium solidifications. Therefore, it is essential to systematically investigate the relationship between process parameters, microstructure and magnetic properties of the Fe-Si alloys manufactured by the L-PBF process. However, the conventional experimental approaches require time-consuming and costly procedures and a great deal of trial and error. In this regard, an efficient and cost-effective tool is needed to investigate the effect of process parameters on the microstructure and magnetic properties under a wide range of process conditions. In this study, the processing parameter correlations were conducted based on the statistical methods using the design of experiments. Through this method, the effect of process parameters on various properties, including relative density, coercivity and saturation magnetisation, was systematically investigated.

show abstract

Section: Resultssupporting

confidence: 59%

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

Ji,

Shim,

Kim

et al. 2023

Powder Metallurgy

View full text Add to dashboard Cite

show abstract

“…140−142 In a recent study, Yuanzhao Hou et al prepared an α-Fe(Si)@ Fe 3 O 4 @SiO 2 (FFS) absorbing composite with a double-shell structure using a high-temperature mechanized method. 143 By controlling the coupling of the temperature field and mechanical force, they formed heterogeneous interfaces and high-density defects such as Fe/Si, α-Fe(Si)/Fe 3 O 4 , and Fe 3 O 4 /SiO 2 . The researchers investigated the microwave absorption properties of FFS composites in the 2−18 GHz range.…”

Section: Military and Civilian Applicationsmentioning

confidence: 99%

Electromagnetic Absorption by Magnetic Oxide Nanomaterials: A Review

Wang,

et al. 2023

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

“…The results demonstrated that the optimized electromagnetic loss mechanism enhanced the balance between impedance matching and strong attenuation characteristics. Additionally, the material exhibited a minimum re ection loss value of -47.04 dB at 5.28 GHz [14]. Zhou et al studied FeSiAl@Al 2 O 3 composite materials with incremental FeSiAl particle sizes.…”

Section: Introductionmentioning

confidence: 99%

The strong broadband microwave absorption properties of FeSiCr@Ni 0.5 Zn 0.5 Fe 2 O 4 composite materials realized by optimizing impedance matching

Hou,

Ma,

Yang

et al. 2024

Preprint

View full text Add to dashboard Cite

Flaky FeSiCr@Ni0.5Zn0.5Fe2O4 composites were successfully synthesized using ball milling and the hydrothermal method. The microstructure, morphology, and phase composition of flaky FeSiCr@Ni0.5Zn0.5Fe2O4 composites were analyzed using XRD, EDS and SEM techniques, confirming the successful preparation of the composite materials. The electromagnetic wave absorption characteristics of the composite with varying contents of Ni0.5Zn0.5Fe2O4 were comprehensively investigated. The electromagnetic properties of flaky FeSiCr@Ni0.5Zn0.5Fe2O4 composite materials were analyzed by VSM. The results showed a reduction in the real part of the permittivity, but this led to the optimization of impedance matching. This improvement was attributed to the synergistic effect of magnetic loss and dielectric loss, thereby enhancing the overall electromagnetic performance of the composite. The sample prepared with a composition of 40% (wt %) Ni0.5Zn0.5Fe2O4 composite displayed the most pronounced absorption performance. At a frequency of 4.3 GHz, the minimum reflection loss achieved was − 41.3 dB. The maximum effective absorption bandwidth measured 5.6 GHz. Notably, through adjustment of the composite material thickness, the effective absorption bandwidth could be broadened to 10.5 GHz (2.5–13.0 GHz), encompassing the entire C and X bands.

show abstract

Electromagnetic wave absorption properties of core double-shell structured α-Fe(Si)@Fe3O4@SiO2 composites

Cited by 22 publications

References 60 publications

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

Processing parameter correlations in powder bed fusion additive manufacturing for Fe–Si soft magnetic materials through design of experiments

Electromagnetic Absorption by Magnetic Oxide Nanomaterials: A Review

The strong broadband microwave absorption properties of FeSiCr@Ni 0.5 Zn 0.5 Fe 2 O 4 composite materials realized by optimizing impedance matching

Contact Info

Product

Resources

About