Synthesis of diameter-fluctuating silicon carbide nanowires for excellent microwave absorption

Wu, Zhihong; Zheng, Haikang; Zhang, Guoli; Deng, Yue; Meng, Zhenzhen; Wahab, Hammad Ul

doi:10.1016/j.matchemphys.2020.122648

Cited by 27 publications

(12 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Detailed structural information about the SiC, h-BN, and BN@F-SiC composites was obtained by XRD, as shown in Figure . From the XRD spectrum for SiC, we can conclude that the characteristic diffraction peaks for SiC are located at 35.6°, 41.4°, 60.1°, and 71.9°, corresponding to the (111), (200), (220), and (311) crystal planes, respectively, and SF is the stacking fault of SiC. , …”

Section: Resultsmentioning

confidence: 93%

“…From the XRD spectrum for SiC, we can conclude that the characteristic diffraction peaks for SiC are located at 35.6°, 41.4°, 60.1°, and 71.9°, corresponding to the (111), ( 200), (220), and (311) crystal planes, respectively, and SF is the stacking fault of SiC. 40,41 The position and intensity of the diffraction peaks in the diffraction patterns for SiC and F-SiC do not change, indicating that the surface modification of SiC by FAS has no effect on the microstructure of SiC. The diffraction peaks of 26.5°, 41.6°, 43.8°, 55.1°, 76.1°, and 82.2°are the characteristic peaks of h-BN, corresponding to the (002), (100), ( 101), (004), (110), and (112) planes, respectively.…”

Section: Resultsmentioning

confidence: 97%

See 1 more Smart Citation

Functionalized Modified BN@F-SiC Particle-Incorporating Epoxy: An Effective Hydrophobic Antiwear and Anticorrosion Coating Material

Zhang

Yuan

et al. 2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

A high-performance BN@F-SiC filler was prepared by depositing hydrophobic nano-SiC grafted by γ-aminopropyltriethoxysilane (KH550) and 1H,1H,2H,2H-trifluoro-noctyltriethoxysilane (FAS) on h-BN grafted by glycidoxy-propyltrimethoxysilane (KH560). A coating containing 1 wt % composite was prepared by dispersing the composite material in epoxy resin (EP), and dispersion, wear resistance, corrosion resistance, electrochemical analysis, and other tests were performed. Also, the influence of h-BN and SiC quality ratios on these properties was systematically studied. The results showed that the BN@F-SiC (2:1) composite material had the best dispersibility in EP. The water contact angle for the coating reached 118°, which indicated that the coating is hydrophobic. The friction coefficient for the BN@F-SiC (2:1)/EP coating was reduced by 89.68% compared with that for the coating without any filler. The potential dynamic polarization test and the salt spray test showed that BN@F-SiC had excellent corrosion inhibition performance. In addition, an EIS test showed that the impedance value for the BN@F-SiC (2:1)/EP coating exceeded 1010 Ω·cm2 at a frequency of 10–2 Hz (|Z|0.01Hz) after 400 h of soaking, which is nearly 103 times higher than that obtained for the EP coating without a filler. This research helps establish a foundation for future research investigating the development of wear-resistant hydrophobic and anticorrosive coatings.

show abstract

Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 97%

Functionalized Modified BN@F-SiC Particle-Incorporating Epoxy: An Effective Hydrophobic Antiwear and Anticorrosion Coating Material

Zhang

Yuan

et al. 2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Firstly, SiO and CO gas sources were produced with the reduction of SiO 2 and CO 2 through reactions ( 1)-( 3) [46]. SiC embryos were formed from heterogeneous nucleation by the solid-gas interaction of reaction ( 4), but the growth of SiC nanowires is determined by reaction (5) with gas-gas interaction [47,48]. As observed, the growth of SiCnw is decided by the separate partial pressure of CO and SiO vapour.…”

Section: Mechanism Discussionmentioning

confidence: 99%

In-Situ Fabrication of ZrB2-ZrC-SiCnws Hybrid Nanopowders With Tunable Morphologies of SiCnws

Liu

Yuan

Wang

et al. 2021

Preprint

View full text Add to dashboard Cite

SiC nanowires (SiCnws) with different morphologies have great potential for the reinforcement of ceramic materials. But it is a big challenge in the in-situ synthesis of SiCnws in the ceramic powders which is critical to ensure high reinforcing effects. For the reinforcement of ZrB2-ZrC composites, a simple method is developed to in-situ fabricate SiCnws with various morphologies in nano-sized ZrB2-ZrC powders through pyrolyzing ZrB2-ZrC-SiC gel precursors. The prepared ZrB2-ZrC ceramic powders have mean diameter of about 100 nm with uniformly distributed SiCnw in morphologies of nanocylider, bead-like, bamboo-shape with tunable nodes, chain-like and hexagonal prisms were prepared by optimizing the preparation process. Moreover, the SiCnws were in a diameter of ranging from 100 to 400 nm, while the length was controlled from tens to hundreds of microns. The generation of ZrB2/ZrC can determine the formation of SiCnws with specific morphologies by producing CO gas to affect the local supersaturation of the SiO and CO vapors. The study provides an opportunity for fabricating SiCnw reinforced ceramic materials with enhanced strengthening effect and also overcome its critical fabrication process.

show abstract

“…Materials based on silicon carbide absorb microwaves well due to their thermal and chemical stability, as well as good resistance to the environment [7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Properties of Silicon Carbide (Review)

Soltys

Mironyuk

Mykytyn

et al. 2023

Phys. Chem. Solid St.

View full text Add to dashboard Cite

Silicon carbide is an extremely hard material that exhibits exceptional corrosion resistance as well as thermal shock resistance. Its high mechanical properties determine the increased performance of materials based on it. The combination of high thermal conductivity and low thermal expansion coefficient determines the stability of silicon carbide at high heating rates and under stationary thermal conditions. To date, significant progress has been made in the development of methods for the synthesis of various materials based on silicon carbide. The main synthesis methods that scientists use in their research are the sol-gel method, sintering, pyrolysis, microwave synthesis, chemical vapor deposition, etc. The use of "green" techniques in the synthesis of SiC has gained wide popularity due to environmental friendliness, renewability, and ease of implementation. This review analyzes modern research in the field of silicon carbide synthesis published in peer-reviewed professional journals.

show abstract

Synthesis of diameter-fluctuating silicon carbide nanowires for excellent microwave absorption

Cited by 27 publications

References 38 publications

Functionalized Modified BN@F-SiC Particle-Incorporating Epoxy: An Effective Hydrophobic Antiwear and Anticorrosion Coating Material

Functionalized Modified BN@F-SiC Particle-Incorporating Epoxy: An Effective Hydrophobic Antiwear and Anticorrosion Coating Material

In-Situ Fabrication of ZrB2-ZrC-SiCnws Hybrid Nanopowders With Tunable Morphologies of SiCnws

Synthesis and Properties of Silicon Carbide (Review)

Contact Info

Product

Resources

About