A sheath-core shaped ZrO2-SiC/SiO2 fiber felt with continuously distributed SiC for broad-band electromagnetic absorption

Li, Xin; Li, Minghang; Lu, Xiaoke; Zhu, Wenjie; Xu, Hailong; Xue, Jimei; Ye, Fang; Liu, Yongsheng; Fan, Xiaomeng; Cheng, Laifei

doi:10.1016/j.cej.2021.129414

Cited by 93 publications

(23 citation statements)

References 64 publications

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“…After that, SiC matrix was infiltrated into preforms by CVI at 1000 ℃ for 300 h with a pressure of 10 kPa. The same as our previous studies, this CVI process used methyltrichlorosilane (MTS, CH 3 SiCl 3 ) as the precursor, argon as diluting gas to control the rate of reaction, and hydrogen as the carrier gas [18,25]. The obtained porous C/SiC composites (1.9 g•cm −3 , 12 vol% open porosity, as shown in the black area in Fig.…”

Section: Materials Preparationmentioning

confidence: 95%

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

et al. 2022

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Oxidation behaviors of carbon fiber reinforced SiC matrix composites (C/SiC) are one of the most noteworthy properties. For C/SiC, the oxidation behavior was controlled by matrix microcracks caused by the mismatch of coefficients of thermal expansion (CTEs) and elastic modulus between carbon fiber and SiC matrix. In order to improve the oxidation resistance, multilayer SiC-Si3N4 matrices were fabricated by chemical vapor infiltration (CVI) to alleviate the above two kinds of mismatch and change the local stress distribution. For the oxidation of C/SiC with multilayer matrices, matrix microcracks would be deflected at the transition layer between different layers of multilayer SiC-Si3N4 matrix to lengthen the oxygen diffusion channels, thereby improving the oxidation resistance of C/SiC, especially at 800 and 1000 °C. The strength retention ratio was increased from 61.9% (C/SiC-SiC/SiC) to 75.7% (C/SiC-Si3N4/SiC/SiC) and 67.8% (C/SiC-SiC/Si3N4/SiC) after oxidation at 800 °C for 10 h.

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Section: Materials Preparationmentioning

confidence: 95%

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

et al. 2022

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“…However, despite its moderate electrical and dielectric properties, the promising capability of CoSe 2 as a novel microwave absorbent has never been explored till now. Generally, for fabrication of high-performance dielectric microwave absorption materials, especially the single-component absorbent, the structural design of hierarchical architectures with improved porosity [27], impedance matching, interface polarization [28][29][30], relaxation intensity, and conducting state [31,32] is essential, and very recently, these interfacial phenomena have been revealed by some new techniques such as off-axis electron holography [12][13][14], which provides new fundamental insight into the underlying mechanisms of the dielectric microwave absorption.…”

Section: Introduction mentioning

confidence: 99%

Dual-surfactant templated hydrothermal synthesis of CoSe2 hierarchical microclews for dielectric microwave absorption

Cao

Zhang

et al. 2022

J Adv Ceram

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Cobalt diselenide (CoSe2) hierarchical clew-like structure is synthesized via a dual-surfactant templated hydrothermal process, and for the first time, its microwave absorption capability has been established. Specifically, the as-synthesized hierarchical interconnected structure is assembled by numerous dense nanobelts. Meticulous tuning of the synthetic conditions which could influence the hierarchical architecture indicates that, in this system, cetyltrimethylammonium bromide (CTAB) plays a dominate role of “balling” while protonated diethylenetriamine (DETA) plays the role of “stringing”. As a novel absorbent, the microwave absorption performance of CoSe2 microstructure is evaluated in 2–18 GHz band. Particularly, 3D hierarchical CoSe2 microclews exhibit superior minimum reflection loss of −26.93 dB at 7.28 GHz and effective absorption bandwidth of 3.72 GHz, which are ∼120% and ∼104% higher than those of simple CoSe2 nanosheets, respectively. Such drastic enhancement could be attributed to the large specific surface area, and more dissipation channels and scattering sites enabled by the unique clew-like microstructure. The versatile dual-surfactant templated assembly of hierarchical CoSe2 microstructure, along with its appreciable dielectric microwave absorption performance, provides new inspirations in developing novel microwave absorbents for mitigation of electromagnetic pollution.

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“…Not only that, carbon materials have many homomorphs, such as graphene [24], carbon nanotubes, CNTs [25], carbon foam [26], porous carbon [27], etc., and are easy to prepare excellent absorbing materials according to needs and different materials [28][29][30]. Among them, like other one-dimensional materials [31]. carbon materials with one-dimensional (1D) morphology have been widely used in the field of microwave absorption because of their aspect ratio, low density, strong dielectric properties, and stable physical and chemical properties [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

A review on one-dimensional carbon-based composites as electromagnetic wave absorbers

Jia

Liang

Chen

et al. 2021

J Mater Sci: Mater Electron

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Electromagnetic (EM) wave technology has greatly promoted the development of information industry and facilitated human life. At the same time, EM pollution caused by excessive use of EM waves will endanger human health and disrupt the normal operation of instruments. Therefore, compelling immediate action needs to be taken to solve EM pollution and interference problem. Onedimensional carbon has become a potential candidate to solve these problems because of its high dielectric loss, significant thermodynamic stability, high specific surface area, and low density. In this paper, the application of onedimensional carbon materials and magnetic materials and dielectric materials in absorbing EM waves is introduced, and the future development direction is prospected, which provides some feasible ideas for more scientists.

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A sheath-core shaped ZrO2-SiC/SiO2 fiber felt with continuously distributed SiC for broad-band electromagnetic absorption

Cited by 93 publications

References 64 publications

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

Oxidation behaviors of carbon fiber reinforced multilayer SiC-Si3N4 matrix composites

Dual-surfactant templated hydrothermal synthesis of CoSe2 hierarchical microclews for dielectric microwave absorption

A review on one-dimensional carbon-based composites as electromagnetic wave absorbers

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