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).
Silicijum karbidni (SiC) prahovi su sintetisani metodom karbotermalne redukcije na relativno niskim temperaturama (1200-1600oS). Kao polazna sirovina odnosno izvor silicijuma, korišćene su domaće mineralne sirovine (beli sepiolit i braon sepiolit). Ustanovljeno je da i hemijski sastav sepiolita i tip korišćenog ugljenika (redukciono sredstvo), veoma utiču na sam proces karbotermalne redukcije. Dobijeni silicijum karbidni prahovi se sastoje od finih čestica beta silicijum karbida i nisu zadržali vlaknastu morfologiju polaznih sirovina tj. sepiolita. Opaženi katalitički uticaj gvožđa (Fe) je pripisan formiranju gvožđe silicida i njihovoj ulozi u olakšanom uklanjanju magnezijumovih jedinjenja (Mg2SiO4 i MgO), tj. redukciji istih u gasoviti magnezijum - Mg(g ).
TY - JOUR
AU - Devečerski, Aleksandar
AU - Pošarac, Milica B.
AU - Dimitrijević, M.
AU - Rosić, M.
AU - Volkov-Husović, Tatjana
AU - Branković, Goran
PY - 2012
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2047
AB - 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).
AB - Silicijum karbidni (SiC) prahovi su sintetisani metodom karbotermalne redukcije na relativno niskim temperaturama (1200-1600oS). Kao polazna sirovina odnosno izvor silicijuma, korišćene su domaće mineralne sirovine (beli sepiolit i braon sepiolit). Ustanovljeno je da i hemijski sastav sepiolita i tip korišćenog ugljenika (redukciono sredstvo), veoma utiču na sam proces karbotermalne redukcije. Dobijeni silicijum karbidni prahovi se sastoje od finih čestica beta silicijum karbida i nisu zadržali vlaknastu morfologiju polaznih sirovina tj. sepiolita. Opaženi katalitički uticaj gvožđa (Fe) je pripisan formiranju gvožđe silicida i njihovoj ulozi u olakšanom uklanjanju magnezijumovih jedinjenja (Mg2SiO4 i MgO), tj. redukciji istih u gasoviti magnezijum - Mg(g ).
PB - International Institute for the Science of Sintering, Beograd
T2 - Science of Sintering
T1 - SiC synthesis using natural Mg-silicates
EP - 94
IS - 1
SP - 81
VL - 44
UR - https://hdl.handle.net/21.15107/rcub_technorep_2047
ER -
@article{
author = "Devečerski, Aleksandar and Pošarac, Milica B. and Dimitrijević, M. and Rosić, M. and Volkov-Husović, Tatjana and Branković, Goran",
year = "2012",
abstract = "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)., Silicijum karbidni (SiC) prahovi su sintetisani metodom karbotermalne redukcije na relativno niskim temperaturama (1200-1600oS). Kao polazna sirovina odnosno izvor silicijuma, korišćene su domaće mineralne sirovine (beli sepiolit i braon sepiolit). Ustanovljeno je da i hemijski sastav sepiolita i tip korišćenog ugljenika (redukciono sredstvo), veoma utiču na sam proces karbotermalne redukcije. Dobijeni silicijum karbidni prahovi se sastoje od finih čestica beta silicijum karbida i nisu zadržali vlaknastu morfologiju polaznih sirovina tj. sepiolita. Opaženi katalitički uticaj gvožđa (Fe) je pripisan formiranju gvožđe silicida i njihovoj ulozi u olakšanom uklanjanju magnezijumovih jedinjenja (Mg2SiO4 i MgO), tj. redukciji istih u gasoviti magnezijum - Mg(g ).",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "SiC synthesis using natural Mg-silicates",
pages = "94-81",
number = "1",
volume = "44",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2047"
}
Devečerski, A., Pošarac, M. B., Dimitrijević, M., Rosić, M., Volkov-Husović, T.,& Branković, G.. (2012). SiC synthesis using natural Mg-silicates. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 44(1), 81-94.
https://hdl.handle.net/21.15107/rcub_technorep_2047
Devečerski A, Pošarac MB, Dimitrijević M, Rosić M, Volkov-Husović T, Branković G. SiC synthesis using natural Mg-silicates. in Science of Sintering. 2012;44(1):81-94.
https://hdl.handle.net/21.15107/rcub_technorep_2047 .
Devečerski, Aleksandar, Pošarac, Milica B., Dimitrijević, M., Rosić, M., Volkov-Husović, Tatjana, Branković, Goran, "SiC synthesis using natural Mg-silicates" in Science of Sintering, 44, no. 1 (2012):81-94,
https://hdl.handle.net/21.15107/rcub_technorep_2047 .
