A novel microwave absorber of FeCoNiCuAl high-entropy alloy powders: Adjusting electromagnetic performance by ball milling time and annealing

Duan, Yuping; Cui, Yuqing; Zhang, Bin; Ma, Guiping; Wang, Tongmin

doi:10.1016/j.jallcom.2018.09.096

Cited by 83 publications

(21 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Consequently, high‐performance EM wave absorbing materials which have drawn increasing attention are now regarded as an effective strategy to eliminate the EM pollution. Carbon‐based composites, 5‐9 metal‐based composites, 10‐14 polymer‐based composites, 15‐19 and ceramic‐based composites, 20‐24 have been extensively studied for EM wave absorption application. However, applications of carbon, metal, and polymer‐based composites are limited at elevated temperatures due to their degraded strength and EM wave absorption under oxidizing and/or corrosive atmosphere 25 .…”

Section: Introductionmentioning

confidence: 99%

Dielectric response and electromagnetic wave absorption of novel macroporous short carbon fibers/mullite composites

Long

Luo

et al. 2020

J Am Ceram Soc

View full text Add to dashboard Cite

Nowadays, electromagnetic (EM) interference and radiation pollution generated from widespread application of electronic devices, could damage the normal function of electronic equipment as well as humanity. 1-4 Consequently, high-performance EM wave absorbing materials which have drawn increasing attention are now regarded as an effective strategy to eliminate the EM pollution. Carbon-based composites, 5-9 metal-based composites, 10-14 polymer-based composites, 15-19 and ceramic-based composites, 20-24 have been extensively studied for EM wave absorption application. However, applications of carbon, metal, and polymer-based composites are limited at elevated temperatures due to their degraded strength and EM wave absorption under oxidizing and/or corrosive atmosphere. 25 Therefore, ceramic-based composites with lightweight, excellent high-temperature strength, and outstanding thermal-chemical stability, are regarded as the most promising candidates of EM wave absorbing materials for high-temperature applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Dielectric response and electromagnetic wave absorption of novel macroporous short carbon fibers/mullite composites

Long

Luo

et al. 2020

J Am Ceram Soc

View full text Add to dashboard Cite

show abstract

“…It is found that the electromagnetic parameters depend on the milling time and aspect ratio of powders. They also found the wave absorption properties can be improved after annealing in FeCoNiCuAl high-entropy powders [31].…”

Section: Introductionmentioning

confidence: 96%

The AC Soft Magnetic Properties of FeCoNixCuAl (1.0 ≤ x ≤ 1.75) High-Entropy Alloys

Wang

Zhang

et al. 2019

Materials

View full text Add to dashboard Cite

High-entropy alloys (HEAs) with soft magnetic properties are one of the new candidate soft magnetic materials which are usually used under an alternating current (AC) magnetic field. In this work, the AC soft magnetic properties are investigated for FeCoNixCuAl (1.0 ≤ x ≤ 1.75) HEAs. The X-ray diffraction (XRD) and scanning electron microscope (SEM) show that the alloy consists of two phases, namely a face-centred cubic (FCC) phase and a body-centred cubic (BCC) phase. With increasing Ni content, the FCC phase content increased. Further research shows that the AC soft magnetic properties of these alloys are closely related to their phase constitution. Increasing the FCC phase content contributes to a decrease in the values of AC remanence (AC Br), AC coercivity (AC Hc) and AC total loss (Ps), while it is harmful to the AC maximum magnetic flux density (AC Bm). Ps can be divided into two parts: AC hysteresis loss (Ph) and eddy current loss (Pe). With increasing frequency f, the ratio of Ph/Ps decreases for all samples. When f ≤ 150 Hz, Ph/Ps > 70%, which means that Ph mainly contributes to Ps. When f ≥ 800 Hz, Ph/Ps < 40% (except for the x = 1.0 sample), which means that Pe mainly contributes to Ps. At the same frequency, the ratio of Ph/Ps decreases gradually with increasing FCC phase content. The values of Pe and Ph are mainly related to the electrical resistivity (ρ) and the AC Hc, respectively. This provides a direction to reduce Ps.

show abstract

“…Therefore, microwave absorbing materials such as carbon fiber felt – multi-walled carbon nanotubes/epoxy composites (Singh et al , 2014), BaFe 11 Mg 2+ 0.25 X 2+ 0.25 Ti 4+ 0.25 O 19 ( X 2+ =Cu, Mn, Zn, Ni and Co) nanoparticles (Sözeri et al , 2016), graphene oxide/polyvinyl alcohol/carbonyl iron powder composites (Qi et al , 2019), SiC nanowires (Shen et al , 2020) molybdenum dioxide (Wang et al , 2020), hexagonal boron nitride nanosheet/carbon nanotube composites have been developed to reduce this pollution by various loss mechanisms (Zhong et al , 2018). Lately, nanomaterials have been a popular subject of study in the world of science due to their unique effects (Tan et al , 2017; Duan et al , 2019; Wang et al , 2018; Özkan et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

Microwave absorption performance of hexagonal nano boron nitride doped basalt fabric-reinforced epoxy composites

Bakal

Yapıcı

Karaaslan

et al. 2021

AEAT

View full text Add to dashboard Cite

Purpose The purpose of this paper is to investigate the effect of doping element on the microwave absorption performance of hexagonal nano boron nitride (h-nBN)-reinforced basalt fabric (BF)/epoxy composites. A new type of hybrid composite that will be produced by the use of boron nitride as an additive that leads to increased radar absorption capability will be developed and a new material that can be used in aeronautical radar applications. Design/methodology/approach This study is focused on the microwave absorption properties of h-nBN doped basalt fabric-reinforced epoxy composites. Basalt fabric (BF)/epoxy composites (pure composites) and the BF/h-nBN (1 Wt.% h-nBN doped composites) hybrid composites were fabricated by vacuum infusion method. Phase identification of the composites were performed using X-ray diffraction (XRD), the 2θ scan range was from 10 to 60 with the scanning speed of 3°/min and surface morphologies of the composites were investigated using scanning electron microscopy (SEM). Microwave properties of samples were investigated through transmission/reflection measurements in Agilent brand 2-Port PNA-L Network Analyzer in the frequency range of 3–18 GHz. The prepared sample is positioned between two horn antennas with and without metal plate. Findings Experimental results show that h-nBN doped composite was synthesized successfully and the produced hexagonal nano boron nitride-added fiber laminated composite material has good absorption behavior when they are used with metallic sheets and good for isolation applications at many points in the 3–18 GHz band. Originality/value This paper will contribute to the literature on the use of basalt fabric, which are new types of fibers, and hexagonal nano boron nitride and the effects of boron nitride on radar absorption properties of composite material. It presents detail characterization of each composite by using XRD and scanning electron microscopy.

show abstract

A novel microwave absorber of FeCoNiCuAl high-entropy alloy powders: Adjusting electromagnetic performance by ball milling time and annealing

Cited by 83 publications

References 40 publications

Dielectric response and electromagnetic wave absorption of novel macroporous short carbon fibers/mullite composites

Dielectric response and electromagnetic wave absorption of novel macroporous short carbon fibers/mullite composites

The AC Soft Magnetic Properties of FeCoNixCuAl (1.0 ≤ x ≤ 1.75) High-Entropy Alloys

Microwave absorption performance of hexagonal nano boron nitride doped basalt fabric-reinforced epoxy composites

Contact Info

Product

Resources

About