Comparison of the Magnetic and Absorption Properties of Flaky Super Sendust and Sendust Alloys

Li, Qifan; Zhang, Feng; Yan, Shuoqing; Nie, Yan; Wang, Xian

doi:10.1007/s11664-015-3847-9

Cited by 10 publications

(5 citation statements)

References 26 publications

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“…With a further increase in the annealing temperature, all the peaks became sharper and stronger. proposed [17,18]. In this study both equations were tested to measure the grain size and the strain of the flakes, but scattering of data was so severe so that the fitted values were meaningless.…”

Section: Resultsmentioning

confidence: 99%

Effects of Annealing on Structure and Magnetic Properties of Fe-Si-Al Flakes

Jang¹

2018

Korean J. Met. Mater.

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This study elucidates the effects of annealing on the properties of Fe-Si-Al flakes. The changes of the DO 3 phase, the lattice parameter and the grain size of the flakes were analyzed by X-ray peak broadening and shift. Static magnetic properties, namely, coericivity and saturation magnetization, were analyzed by a vibration sample magnetometer (VSM). The complex permeability spectra were measured by a precision impedance analyzer. The cocercivity and the real part of the complex permeability had the lowest and highest values after 1023 K annealing. The change in the magnetic properties with annealing temperature is successfully explained by relief of residual stress and the formation of DO 3 and B2 ordered phases.

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Section: Resultsmentioning

confidence: 99%

Effects of Annealing on Structure and Magnetic Properties of Fe-Si-Al Flakes

Jang¹

2018

Korean J. Met. Mater.

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“…Specifically, the FeSiAl sample had a high Ms value and exhibits typical ferromagnetic hysteresis behavior. The high Ms value contributes to the high initial permeability, which can provide a good impedance matching characteristic and broadband microwave absorption for the FeSiAl flakes [37].…”

Section: Resultsmentioning

confidence: 99%

Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties

Wang,

Guo,

Dai

et al. 2023

Metals

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FeSiAl flakes were fabricated by vibrating ball milling the FeSiAl ribbons. And the microwave absorption properties of FeSiAl flakes were improved by doping the multi-wall carbon nanotubes (MWCNTs) with different mass concentrations. The results show that the FeSiAl/MWCNT composites exhibit significantly improved microwave absorption performance with advantages of strong and broadband absorption in the L-band and S-band. In particular, the reflection loss (RL) of the FeSiAl/MWCNT2 composite reaches −7.4 dB at 1.0 GHz, whereupon, through the electromagnetic simulation software CST Microwave Studio, FeSiAl/MWCNT2 all-dielectric metamaterial absorbers (ADMMAs) were macroscopically designed, achieving an ultra-wideband absorption (RL ≤ −10 dB) of 14.4 GHz (3.6~18.0 GHz). It is recognized that the standing wavelength resonance and diffraction effect are responsible for absorbing electromagnetic waves, and the broadband absorption is improved via dielectric dispersion; their synergistic effect makes the ADMMAs exhibit good microwave absorption performance. This work provides a useful method for designing microwave absorption materials with broadband absorption.

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“…The reflectivity R of the samples can be calculated from Eq. (3) when given the thickness and frequency (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12), as shows on the absorbing curve Fig. 5.…”

Section: The Electromagnetic Parameters and Microwavementioning

confidence: 89%

“…Soft magnetic metallic materials already attracts much attention because it exhibits good absorbing properties at 2-18 GHz owing to its high curie temperature and the good temperature stability [9][10][11]. Iron, cobalt, nickel and corresponding metallic alloy is considered to be the best soft magnetic materials [12].…”

Section: Introductionmentioning

confidence: 99%

Structure and microwave absorption properties of Nd–Co–Ni alloys

Qiao

Pan

Xiong

et al. 2016

J Mater Sci: Mater Electron

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To study the effect of Ni content on microwave absorption of Nd 2 Co 17 alloy. The Nd 2 Co 17-x Ni x (X = 0.0, 0.2, 0.6, 1.0, 1.4) powders were prepared by arc smelting and high energy ball milling method. The structure and morphology of the powder were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electromagnetic parameters of the powder were measured by vector network analyzer (VNA) at room temperature. The XRD results indicate that the prepared powder maintain the Nd 2 Co 17 phase. The minimum reflectivity value frequency shifts towards the lower frequency with the increase of Ni content. The minimum reflectivity value of Nd 2 Co 15.6 Ni 1.4 alloy reaches about -26.6 dB at 2.9 GHz with the matching thickness of 2.2 mm. And the milled powder was tempered ranging of 50-200°C for 1 h. The minimum reflectivity frequency shifts to higher frequency region compared to the powder without heat treatment. The absorbing frequency bandwidth increases with the tempering treatment increase.

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Comparison of the Magnetic and Absorption Properties of Flaky Super Sendust and Sendust Alloys

Cited by 10 publications

References 26 publications

Effects of Annealing on Structure and Magnetic Properties of Fe-Si-Al Flakes

Effects of Annealing on Structure and Magnetic Properties of Fe-Si-Al Flakes

Microwave All-Dielectric Metamaterial Design of FeSiAl/MWCNT Composite for Low-Frequency Broadband-Absorbing Properties

Structure and microwave absorption properties of Nd–Co–Ni alloys

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