Research output: Contribution to journal › Article › peer-review
Synthesis of β-SiC Using Nanofibrous Carbon. / Krutskii, Yu L.; Gudyma, T. S.; Aparnev, A. I. et al.
In: Nanobiotechnology reports, Vol. 19, No. Suppl 1, 24.03.2024, p. S138-S145.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Synthesis of β-SiC Using Nanofibrous Carbon
AU - Krutskii, Yu L.
AU - Gudyma, T. S.
AU - Aparnev, A. I.
AU - Loginov, A. V.
AU - Krutskaya, T. M.
AU - Ukhina, A. V.
AU - Cherkasova, N. Yu
AU - Netskina, O. V.
AU - Maximovskiy, E. A.
N1 - The study was performed in accordance with the state order of the Ministry of Science and Higher Education of the Russian Federation (code FSUN-2023-0008). Synthesis of β-SiC Using Nanofibrous Carbon / Yu. L. Krutskii, T. S. Gudyma, A. I. Aparnev [et al.] // Nanobiotechnology Reports. – 2024. – Vol. 19, No. S1. – P. S138-S145. – DOI 10.1134/S2635167624602663.c
PY - 2024/3/24
Y1 - 2024/3/24
N2 - Abstract: The synthesis and study of the characteristics of β-phase silicon carbide powder is carried out. The compound is obtained by combining endothermic and exothermic reactions (carbothermic reduction of silicon dioxide and synthesis from simple substances) in an induction furnace in an atmosphere of nitrogen and carbon monoxide (CO). Nanofibrous carbon (NFC) is used as the reducing agent and carbide-forming reagent. This carbon agent is obtained as a result of the decomposition of light hydrocarbons. NFC is characterized by a high specific surface area (~150 m2/g) in comparison, for example, with carbon black (~50 m2/g). NFC is a fairly pure material and the impurity content in it does not exceed 1 wt %. Optimization of the synthesis conditions made it possible to obtain a single-phase product: cubic silicon carbide β-SiC. The powder had an average particle size of ~4 μm and a specific surface area of 7.7–8.4 m2/g. The resulting silicon carbide barely oxidizes when heated to 1000°C. Completion of the synthesis reaction is achieved for samples whose charge contained NFC, silicon oxide, and silicon powder in a molar ratio of 4 : 1 : 1, respectively. The optimal synthesis temperature is 1700–1900°C.
AB - Abstract: The synthesis and study of the characteristics of β-phase silicon carbide powder is carried out. The compound is obtained by combining endothermic and exothermic reactions (carbothermic reduction of silicon dioxide and synthesis from simple substances) in an induction furnace in an atmosphere of nitrogen and carbon monoxide (CO). Nanofibrous carbon (NFC) is used as the reducing agent and carbide-forming reagent. This carbon agent is obtained as a result of the decomposition of light hydrocarbons. NFC is characterized by a high specific surface area (~150 m2/g) in comparison, for example, with carbon black (~50 m2/g). NFC is a fairly pure material and the impurity content in it does not exceed 1 wt %. Optimization of the synthesis conditions made it possible to obtain a single-phase product: cubic silicon carbide β-SiC. The powder had an average particle size of ~4 μm and a specific surface area of 7.7–8.4 m2/g. The resulting silicon carbide barely oxidizes when heated to 1000°C. Completion of the synthesis reaction is achieved for samples whose charge contained NFC, silicon oxide, and silicon powder in a molar ratio of 4 : 1 : 1, respectively. The optimal synthesis temperature is 1700–1900°C.
UR - https://www.mendeley.com/catalogue/3d2e4179-e401-3652-a56e-f427f29ff194/
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105000926993&origin=inward&txGid=df589ebf41f05ba71695d000f3708faa
UR - https://elibrary.ru/item.asp?id=80504899
U2 - 10.1134/S2635167624602663
DO - 10.1134/S2635167624602663
M3 - Article
VL - 19
SP - S138-S145
JO - Nanobiotechnology reports
JF - Nanobiotechnology reports
SN - 2635-1676
IS - Suppl 1
ER -
ID: 65131706