Synthesis and potential applications of silicon carbide nanomaterials / nanocomposites

Sun, Kewen; Wang, Tongtong; Gong, Weibo; Lu, Wenyang; He, Xin; Eddings, Eric G.; Fan, Maohong

doi:10.1016/j.ceramint.2022.07.204

Cited by 31 publications

(10 citation statements)

References 98 publications

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“…It contributes to developing a high areal capacity, a crucial design metric for functional electrodes. Utilizing micrometer-sized Si-based materials in structural design, [116][117][118][119] dimensional structure, [120,121] and nanocomposites [122,123] can aid researchers in comprehending and inhibiting the volume expansion process and mechanical or cycle life issues.…”

Section: Expansion and Crackingmentioning

confidence: 99%

Silicon Solid State Battery: The Solid‐State Compatibility, Particle Size, and Carbon Compositing for High Energy Density

Boorboor Ajdari,

Asghari,

Molaei Aghdam

et al. 2024

Adv Funct Materials

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Solid‐state battery research has gained significant attention due to their inherent safety and high energy density. Silicon anodes have been promoted for their advantageous characteristics, including high volumetric capacity, low lithiation potential, high theoretical and specific gravimetric capacity, and the absence of lethal dendritic growth. Addressing concerns such as low conductivity, pulverization, fracture, dense solid electrolyte interface layer, and low coulombic efficiency has substantially improved the use of silicon electrodes in solid‐state batteries. Researchers have explored carbon additions, solid electrolyte suitability for Si anodes, pressure optimization, and particle size effects (nano/micro) to enhance energy density. Recent studies have investigated the conductivity mechanism, stack pressure, and anode‐solid electrolyte compatibility to improve energy density. Micro‐ and nano‐sized silicon have attracted attention in carbon‐based composites due to their exceptional conductivity, uniform distribution, efficient electron migration, and diffusion channels. The development of solid‐state batteries with high energy density, safety, and extended lifespan has been a major focus. This review sheds light on significant insights and strategic approaches for researchers working on solid‐state silicon‐based systems to overcome existing challenges.

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Section: Expansion and Crackingmentioning

confidence: 99%

Silicon Solid State Battery: The Solid‐State Compatibility, Particle Size, and Carbon Compositing for High Energy Density

Boorboor Ajdari,

Asghari,

Molaei Aghdam

et al. 2024

Adv Funct Materials

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“…SiC, a covalent compound with robust chemical bonds between silicon and carbon atoms (Si-C bond energy 4.6 eV), 1 exhibits unique physicochemical properties such as tunable band gap semiconductor, high corrosion resistance, high thermal conductivity (120 W m À1 K À1 ), low thermal expansion coefficient (4 Â 10 À6 1C À1 ), and good thermal shock resistance, [2][3][4] resulting from the combination of high covalent bond strength and inherent material hardness. The crystal structure of SiC significantly influences its characteristics, with distinct polytypes, specifically 3C-SiC (b-SiC) and 6H-SiC (a-SiC), showing varying electrical, thermal, and mechanical attributes.…”

Section: Introductionmentioning

confidence: 99%

One-pot synthesis of silicon carbide from a non-formalin iminosilane-resorcinol composite

Mohanapriya,

Chandrasekaran

2024

New J. Chem.

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“…Another viable strategy is the deposition of intermediate layers, acting as diffusion barriers for Co and minimizing effects from the thermal expansion difference. Among several possible interlayers cited in the literature, silicon carbide (SiC) is pointed as one of the best options for such application 7,[10][11][12][13][14][15][16][17][18][19][20] . SiC is extensively used in abrasive tools, ceramics, insulation, metallurgical applications, refractories, and wear resistant materials, and this is due to its superior properties, including wide bandgap, low density, low thermal expansion, excellent thermal shock/oxidation/chemical resistance, high hardness, and high thermal conductivity 18,21 .…”

Section: Introductionmentioning

confidence: 99%

A New Two-Step Method for Laser Cladding of Silicon Carbide in Wc-Co Substrates

et al. 2023

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WC-Co cutting tools are widely used by the metalworking industry. In order to improve the properties of these tools, research on the application of wear-resistant coatings, such as polycrystalline diamond, are of great importance to several applications. It is known that the occurrence of high-stress levels between the coating and the substrate can lead to adhesion failures. One strategy to minimize these failures is applying an intermediate layer of SiC. In this work, the deposition of a SiC layer was carried out by a novel two-step laser cladding approach. Instead of cladding directly the presynthesized SiC on the substrates, a 200 µm silicon powder layer was pre-deposited on the WC-Co substrates and then irradiated with a 30 W CO 2 laser. To improve metallurgical bonding between the tungsten and the Si layer, all substrates were chemically attacked. This attack allows cobalt removal from the surface and increases surface roughness, improving the laser cladding process. After the SiC laser cladding, samples were coated with a 200 µm graphite powder layer and irradiated again by a CO 2 laser. The samples were characterized by SEM, EDS, and XRD analysis. The results showed that in the first step, an irradiation energy of about 0.27 J was enough to fuse the silicon powder to the substrate and in the second step, 0.13 J was enough to promote the reaction between silicon, carbon and the WC substrate, resulting in the in-situ synthesis of SiC. Finally, a new method was proposed for the deposition of SiC on WC-Co based substrates and the observed results allowed the proposal of an empirical equation to describe the chemical reactions of the process.

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Synthesis and potential applications of silicon carbide nanomaterials / nanocomposites

Cited by 31 publications

References 98 publications

Silicon Solid State Battery: The Solid‐State Compatibility, Particle Size, and Carbon Compositing for High Energy Density

Silicon Solid State Battery: The Solid‐State Compatibility, Particle Size, and Carbon Compositing for High Energy Density

One-pot synthesis of silicon carbide from a non-formalin iminosilane-resorcinol composite

A New Two-Step Method for Laser Cladding of Silicon Carbide in Wc-Co Substrates

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