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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 14, Pages 21–24
DOI: https://doi.org/10.21883/PJTF.2020.14.49661.18302 (Mi pjtf5045) 		 
Obtaining silicon-carbide-based ceramics from ash and slag wastes

A. Ya. Pak, V. E. Gubin, G. Ya. Mamontov

Tomsk Polytechnic University
Full-text PDF (739 kB)
DOI: https://doi.org/10.21883/PJTF.2020.14.49661.18302
Abstract: The possibility of obtaining solid silicon-carbide-based ceramics from ash and slag wastes (ASWs) is demonstrated. The technological process contains three stages: (i) nonvacuum processing of the initial ASWs in dc arc discharge carbon plasma under normal atmospheric condition, (ii) cleaning of the obtained powdered material from unbound carbon by annealing in atmospheric furnace, and (iii) final spark plasma sintering of the powder. Analytical data indicate that the obtained product is a silicon-carbide-based ceramics with a density of 3.05 g/cm$^3$ and a hardness of up to 19.9 GPa.
Keywords: silicon carbide, electric-arc synthesis, nonvacuum method, spark plasma sintering.
Funding agency Grant number
Ministry of Education and Science of the Russian Federation FSWW-2020-0022
ВИУ-НРиИ-346/2019
This work was carried out in the framework of the state order program “Science” (project no. FSWW-0022-2020 in the part of experiments on ASW disposal) and the Program of Increasing Competitiveness of Tomsk Polytechnic University (project VIU-NRiI-346/2019 in the part of synthetic materials).
Received: 23.03.2020
Revised: 13.04.2020
Accepted: 13.04.2020
English version:
Technical Physics Letters, 2020, Volume 46, Issue 7, Pages 695–698
DOI: https://doi.org/10.1134/S1063785020070226
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. Ya. Pak, V. E. Gubin, G. Ya. Mamontov, “Obtaining silicon-carbide-based ceramics from ash and slag wastes”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 46:14 (2020), 21–24; Tech. Phys. Lett., 46:7 (2020), 695–698
Citation in format AMSBIB
\Bibitem{PakGubMam20}
\by A.~Ya.~Pak, V.~E.~Gubin, G.~Ya.~Mamontov
\paper Obtaining silicon-carbide-based ceramics from ash and slag wastes
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2020
\vol 46
\issue 14
\pages 21--24
\mathnet{http://mi.mathnet.ru/pjtf5045}
\crossref{https://doi.org/10.21883/PJTF.2020.14.49661.18302}
\elib{https://elibrary.ru/item.asp?id=43870325}
\transl
\jour Tech. Phys. Lett.
\yr 2020
\vol 46
\issue 7
\pages 695--698
\crossref{https://doi.org/10.1134/S1063785020070226}
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