In situ synthesis of Al2O3–SiC powders via molten-salt-assisted aluminum/carbothermal reduction method

Sun, Yijing; Luo, Zheng; Zhang, Shaowei; Luo, Xudong; Liu, Feng; Li, Yong

doi:10.1016/j.ceramint.2022.05.061

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…Multiple materials have been successfully synthesized in molten salt media. [123][124][125][126] Transforming waste biomass into capacitive carbon materials is a form of reuse of waste biomass. However, the production of valueadded carbon using traditional methods is difficult, and the resulting capacitor carbon has a low performance.…”

Section: Reaction Mediummentioning

confidence: 99%

Molten salt technique for the synthesis of carbon-based materials for supercapacitors

Yang,

Ma,

et al. 2023

Green Chem.

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Section: Reaction Mediummentioning

confidence: 99%

Molten salt technique for the synthesis of carbon-based materials for supercapacitors

Yang,

Ma,

et al. 2023

Green Chem.

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“…The synthesis of porous ceramics (e.g., TiC, SiC, HfC) through carbothermal reduction often encounters incomplete reactions due to the high melting points of these materials. Sun et al [ 32 ] developed a molten-salt-assisted aluminum/carbothermal reduction technique to produce Al 2 O 3 -SiC powders. Their findings indicate that a NaCl-KCl molten salt medium markedly enhances the phase transition from quartz to SiC and lowers the composite powder’s synthesis temperature.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical Property and Thermal Conductivity of Porous TiCO Ceramic Fabricated by In Situ Carbothermal Reduction of Phenolic Resin and Titania

Cao,

Wang,

et al. 2024

Nanomaterials

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The porous TiCO ceramic was synthesized through a one-step sintering method, utilizing phenolic resin, TiO2 powder, and KCl foaming agent as raw materials. Ni(NO3)2·6H2O was incorporated as a catalyst to facilitate the carbothermal reaction between the pyrolytic carbon and TiO2 powder. The influence of Ni(NO3)2·6H2O catalyst content (0, 5, 10 wt.% of the TiO2 powder) on the microstructure, compressive strength, and thermal conductivity of the resultant porous TiCO ceramic was examined. X-ray diffraction and X-ray photoelectron spectroscopy results confirmed the formation of TiC and TiO in all samples, with an increase in the peak of TiC and a decrease in that of TiO as the Ni(NO3)2·6H2O content increased from 0% to 10%. Scanning electron microscopy results demonstrated a morphological change in the pore wall, transforming from a honeycomb-like porous structure composed of well-dispersed carbon and TiC-TiO particles to rod-shaped TiC whiskers, interconnected with each other as the catalyst content increased from 0% to 10%. Mercury intrusion porosimetry results proved a dual modal pore-size distribution of the samples, comprising nano-scale pores and micro-scale pores. The micro-scale pore size of the samples minorly changed, while the nano-scale pore size escalated from 52 nm to 138 nm as the catalyst content increased from 0 to 10%. The morphology of the pore wall and nano-scale pore size primarily influenced the compressive strength and thermal conductivity of the samples by affecting the load-bearing capability and solid heat-transfer conduction path, respectively.

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Impact of CeO2 modification on the quality and wear performance of Al2O3/SiC reinforced metal-based coatings

Zheng,

Huang,

et al. 2024

Materials Characterization

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In situ synthesis of Al2O3–SiC powders via molten-salt-assisted aluminum/carbothermal reduction method

Cited by 3 publications

References 22 publications

Molten salt technique for the synthesis of carbon-based materials for supercapacitors

Molten salt technique for the synthesis of carbon-based materials for supercapacitors

Microstructure, Mechanical Property and Thermal Conductivity of Porous TiCO Ceramic Fabricated by In Situ Carbothermal Reduction of Phenolic Resin and Titania

Impact of CeO2 modification on the quality and wear performance of Al2O3/SiC reinforced metal-based coatings

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