SiC synthesis using natural Mg-silicates | Zendy

Aleksandar Devečerski | Zendy; M. Pošarac | Zendy; M. Dimitrijević | Zendy; Milena Rosić | Zendy; Tatjana VolkovHusović | Zendy; G. Branković | Zendy

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SiC synthesis using natural Mg-silicates

Author(s) -

Aleksandar Devečerski,

M. Pošarac,

M. Dimitrijević,

Milena Rosić,

Tatjana VolkovHusović,

G. Branković

Publication year - 2012

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos1201081d

Subject(s) - carbothermic reaction , sepiolite , silicon carbide , materials science , chemical engineering , carbon fibers , carbide , silicide , morphology (biology) , metallurgy , mineralogy , silicon , composite material , chemistry , composite number , raw material , organic chemistry , geology , engineering , paleontology

The silicon carbide powders are prepared by carbothermal reduction of domestic mineral resources (white and brown sepiolite), at relatively low temperatures (1200 - 1600oC). Carbothermal reduction process is greatly influenced by chemical composition of sepiolites and type of carbon used. Obtained SiC powders consist of fine β-SiC particles and did not retain the fibrous morphology of sepiolites. Catalytical influence of Fe is attributed to formation of iron-silicide and its potentionaly important role in removal of Mg-species, i.e. reduction of Mg2SiO4 and MgO into Mg(g)

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