High temperature anti-oxidative and tunable wave absorbing SiC/Fe3Si/CNTs composite ceramic derived from a novel polysilyacetylene

Hou, Yongzhao; Xiao, Bo; Sun, Zhiyuan; Yang, Wen; Wu, Songsong; Qi, Shuai; Wen, Guangwu; Huang, Xiaoxiao

doi:10.1016/j.ceramint.2019.05.165

Cited by 44 publications

(13 citation statements)

References 56 publications

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“…Optimal microwave absorption performance of various 1D absorbers: RL min absolute value vs thickness (a) and EAB vs thickness (b): S1, SiC/Fe 3 Si/CNTs; S2, RGO-C nanofibers; S3, Ni/C nanofibers; S4, MnO 2 @Fe nanorods; S5, Fe/Fe 3 C@CNTs; S6, MoO 2 /C nanowires; S7, TiN/C nanofibers; S8, VN nanowires-RGO; S9, FeNi/C nanofibers; S10, Fe 3 C/C nanofibers; S11, MnO@C nanowires; S12, SiC@C nanowires …”

Section: Resultsmentioning

confidence: 99%

Morphology Design of Co-electrospinning MnO-VN/C Nanofibers for Enhancing the Microwave Absorption Performances

Yuan

Wang

Huang

et al. 2020

ACS Appl. Mater. Interfaces

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To enhance microwave loss abilities, constructing composites with one-dimensional (1D) structure is an excellent scheme. In this work, a high-efficiency microwave absorber of MnO nanograins decorated vanadium nitride/carbon nanofibers (MnO-VN/C NFs) was successfully prepared for the first time via co-electrospinning technology and subsequent nitriding treatment. Studying in detail the specific relationship between nitriding time and the morphology of the as-prepared NFs, the precipitations of MnO nanoparticles with tailored structures were attached on the surface of VN/C NFs to optimize their electromagnetic parameters. When the nitriding time was 2.0 h at 600 °C, the MnO-VN/C NFs displayed good microwave absorption performances: the minimum reflection loss (RL) value was −63.2 dB at 8.8 GHz, and the bandwidth of RL < −10 dB was up to 6.4 GHz from 11.6 to 18 GHz at the thickness of 2.8 mm. Meanwhile, the absorption bandwidth (RL< −10 dB) could cover the whole X and Ku band by adjusting the thickness, respectively. The outstanding performances could be attributed to the good impedance matching and various loss pathways including conductive loss and interfacial and dipole polarizations. In these regards, MnO-VN/C NFs are likely to be utilized as a high-efficiency microwave absorber. And the strategy in this work can provide great help to design other 1D structural microwave absorbers with a broader absorbing band.

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Section: Resultsmentioning

confidence: 99%

Morphology Design of Co-electrospinning MnO-VN/C Nanofibers for Enhancing the Microwave Absorption Performances

Yuan

Wang

Huang

et al. 2020

ACS Appl. Mater. Interfaces

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“…The use of PDCs resolved issues such as the high density of pure magnetic absorbing materials and the low thermal stability of pure carbon materials. Hou et al proposed high-temperature oxidation resistive wave-absorbing SiC composites via the PDC route with the incorporation of Fe 3 Si and carbon nanotubes (CNTs) [ 65 ]. Experimental results demonstrated the high-temperature antioxidation and tunable wave absorption of SiC/Fe 3 Si/CNTs composite ceramics.…”

Section: Applicationsmentioning

confidence: 99%

High-Temperature Properties and Applications of Si-Based Polymer-Derived Ceramics: A Review

2021

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Ceramics derived from organic polymer precursors, which have exceptional mechanical and chemical properties that are stable up to temperatures slightly below 2000 °C, are referred to as polymer-derived ceramics (PDCs). These molecularly designed amorphous ceramics have the same high mechanical and chemical properties as conventional powder-based ceramics, but they also demonstrate improved oxidation resistance and creep resistance and low pyrolysis temperature. Since the early 1970s, PDCs have attracted widespread attention due to their unique microstructures, and the benefits of polymeric precursors for advanced manufacturing techniques. Depending on various doping elements, molecular configurations, and microstructures, PDCs may also be beneficial for electrochemical applications at elevated temperatures that exceed the applicability of other materials. However, the microstructural evolution, or the conversion, segregation, and decomposition of amorphous nanodomain structures, decreases the reliability of PDC products at temperatures above 1400 °C. This review investigates structure-related properties of PDC products at elevated temperatures close to or higher than 1000 °C, including manufacturing production, and challenges of high-temperature PDCs. Analysis and future outlook of high-temperature structural and electrical applications, such as fibers, ceramic matrix composites (CMCs), microelectromechanical systems (MEMSs), and sensors, within high-temperature regimes are also discussed.

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“…Silicon carbide fiber (SiC f ) is a conventional material to prepare the absorber because of its semi-conductive properties and high thermal stability [12]. However, due to the narrow tunable dielectric permittivity, its application has been limited [13][14][15]. The surface treatment of SiC f is necessary to improve the EMW absorption capability [16].…”

Section: Introductionmentioning

confidence: 99%

Constructing hierarchical Ti3SiC2 layer and carbon nanotubes on SiC fibers for enhanced electromagnetic wave absorption

Zou

Huang

Fan

et al. 2023

Ceramics International

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High temperature anti-oxidative and tunable wave absorbing SiC/Fe3Si/CNTs composite ceramic derived from a novel polysilyacetylene

Cited by 44 publications

References 56 publications

Morphology Design of Co-electrospinning MnO-VN/C Nanofibers for Enhancing the Microwave Absorption Performances

Morphology Design of Co-electrospinning MnO-VN/C Nanofibers for Enhancing the Microwave Absorption Performances

High-Temperature Properties and Applications of Si-Based Polymer-Derived Ceramics: A Review

Constructing hierarchical Ti3SiC2 layer and carbon nanotubes on SiC fibers for enhanced electromagnetic wave absorption

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