Features of the structure formation of secondary silicon carbide synthesized under conditions of the interaction of nano-sized nonstoichiometric silicon carbide with iron oxide

1Tymoshenko, Ya.G, 1Gadzyra, MP, 1Gnesin, GG, 1Galyamin, VB
1I. M. Fratntsevich Institute for Problems of Materials Sciences of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2017, 2:42-48
Section: Materials Science
Language: Ukrainian

The interaction between a nano-sized powder of a solid solution of carbon in silicon carbide and iron oxide at the high-temperature heating is studied. The phase composition and morphology of the powder product is analyzed. It is established that, in the process of interaction of a mixture of powders of the system (SiC-C) — Fe2O3 in vacuum, the synthesis of secondary SiC with a lattice parameter, which corresponds to the standard value of the cubic β-SiC, occurs. The same interaction in the flowing argon atmosphere is accompanied by the synthesis of secondary SiC with a decreased lattice parameter.

Keywords: cubic β-SiC, induction furnace, iron oxide, secondary silicon carbide, sintered iron ore concentrate, solid solution of carbon in silicon carbide, synthesis
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