Journal of Siberian Federal University. Engineering & Technologies / Modification of Silicon Carbide Ceramics by Hierarchical Systems “Multi-Walled Carbon Nanotubes-Silicon”

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2023 16 (4)
Authors
Zavorin, Aleksei V.; Moseenkov, Sergei I.; Serkova, Aleksandra N.; Kuznetsov, Vladimir L.
Contact information
Zavorin, Aleksei V.: Boreskov Institute of Catalysis SB RAS Novosibirsk, Russian Federation; Novosibirsk State University Novosibirsk, Russian Federation; ; Moseenkov, Sergei I.: Boreskov Institute of Catalysis SB RAS Novosibirsk, Russian Federation; Serkova, Aleksandra N.: Boreskov Institute of Catalysis SB RAS Novosibirsk, Russian Federation; Kuznetsov, Vladimir L.: Boreskov Institute of Catalysis SB RAS Novosibirsk, Russian Federation
Keywords
SiC ceramics; multi-walled carbon nanotubes; scanning electron microscopy; reaction sintering; three-point flexural test
Abstract

Samples of porous ceramics based on silicon carbide were obtained by reactive sintering under pressure. Fine-crystalline silicon was used as a binder in combination with multi-walled carbon nanotubes (MWCNTs) with deposited silicon particles. The pressing pressure was 30 MPa, the temperature was varied in the range of 1420–1480 °C, the MWCNTs content was from 0 to 4 wt. %, and silicon binder from 20 to 25 wt. %. The structure of the obtained ceramics was studied by optical and scanning electron microscopy. The main regularities of the structure formation of sintered modified ceramics are established depending on the sintering conditions. To study the physical and mechanical properties of the obtained samples, the three-point flexural test was used

Pages
434–449
EDN
RIQJUZ
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/150165

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