Synthesis of biomorphic SiC ceramics
Nema prikaza
Autori
Egelja, AdelaGulicovski, Jelena J.
Devečerski, Aleksandar
Ninic, M.
Radosavljević-Mihajlović, Ana S.
Matović, Branko
Članak u časopisu
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This paper deals with a new method for producing non-oxide ceramic using wood as a template. Highly porous silicon carbide (SiC) ceramic with woodlike microstructure has been prepared by carbothermal reduction reactions of Tilia wood/TEOS composite at 1873K. Wood specimens were carbonized at 1273K in Ar atmosphere for 2 hour. The porous carbon preform was infiltrated with TEOS (Si(OC(2)H(5))(4)), as a source of silica, without pressure at 298K. The infiltration/annealing processs was repeated up to five times to increase the SiO(2) content in the bionnorphic samples. The morphology of resulting porous SiC ceramics, as well as the conversion mechanism of wood to porous SiC ceramics, have been investigated by mean of scanning electron microscopy (SEM/EDS) and X-ray diffraction analysis (XRD). Experimental results show that the biomorphic cellular structure of wood is preserved after thermal treatment as a porous SiC ceramics. Obtained SiC ceramics consists of beta-SiC with traces of alph...a-SiC.
Ključne reči:
biomorphic ceramics / SiC / wood / carbothermal reductionIzvor:
Journal of Optoelectronics and Advanced Materials, 2008, 10, 12, 3447-3449Finansiranje / projekti:
- Nanostrukturni neoksidni keramički i karbonski materijali i njihovi kompoziti (RS-MESTD-MPN2006-2010-142016)
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Egelja, Adela AU - Gulicovski, Jelena J. AU - Devečerski, Aleksandar AU - Ninic, M. AU - Radosavljević-Mihajlović, Ana S. AU - Matović, Branko PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3603 AB - This paper deals with a new method for producing non-oxide ceramic using wood as a template. Highly porous silicon carbide (SiC) ceramic with woodlike microstructure has been prepared by carbothermal reduction reactions of Tilia wood/TEOS composite at 1873K. Wood specimens were carbonized at 1273K in Ar atmosphere for 2 hour. The porous carbon preform was infiltrated with TEOS (Si(OC(2)H(5))(4)), as a source of silica, without pressure at 298K. The infiltration/annealing processs was repeated up to five times to increase the SiO(2) content in the bionnorphic samples. The morphology of resulting porous SiC ceramics, as well as the conversion mechanism of wood to porous SiC ceramics, have been investigated by mean of scanning electron microscopy (SEM/EDS) and X-ray diffraction analysis (XRD). Experimental results show that the biomorphic cellular structure of wood is preserved after thermal treatment as a porous SiC ceramics. Obtained SiC ceramics consists of beta-SiC with traces of alpha-SiC. T2 - Journal of Optoelectronics and Advanced Materials T1 - Synthesis of biomorphic SiC ceramics VL - 10 IS - 12 SP - 3447 EP - 3449 UR - https://hdl.handle.net/21.15107/rcub_vinar_3603 ER -
@article{ author = "Egelja, Adela and Gulicovski, Jelena J. and Devečerski, Aleksandar and Ninic, M. and Radosavljević-Mihajlović, Ana S. and Matović, Branko", year = "2008", abstract = "This paper deals with a new method for producing non-oxide ceramic using wood as a template. Highly porous silicon carbide (SiC) ceramic with woodlike microstructure has been prepared by carbothermal reduction reactions of Tilia wood/TEOS composite at 1873K. Wood specimens were carbonized at 1273K in Ar atmosphere for 2 hour. The porous carbon preform was infiltrated with TEOS (Si(OC(2)H(5))(4)), as a source of silica, without pressure at 298K. The infiltration/annealing processs was repeated up to five times to increase the SiO(2) content in the bionnorphic samples. The morphology of resulting porous SiC ceramics, as well as the conversion mechanism of wood to porous SiC ceramics, have been investigated by mean of scanning electron microscopy (SEM/EDS) and X-ray diffraction analysis (XRD). Experimental results show that the biomorphic cellular structure of wood is preserved after thermal treatment as a porous SiC ceramics. Obtained SiC ceramics consists of beta-SiC with traces of alpha-SiC.", journal = "Journal of Optoelectronics and Advanced Materials", title = "Synthesis of biomorphic SiC ceramics", volume = "10", number = "12", pages = "3447-3449", url = "https://hdl.handle.net/21.15107/rcub_vinar_3603" }
Egelja, A., Gulicovski, J. J., Devečerski, A., Ninic, M., Radosavljević-Mihajlović, A. S.,& Matović, B.. (2008). Synthesis of biomorphic SiC ceramics. in Journal of Optoelectronics and Advanced Materials, 10(12), 3447-3449. https://hdl.handle.net/21.15107/rcub_vinar_3603
Egelja A, Gulicovski JJ, Devečerski A, Ninic M, Radosavljević-Mihajlović AS, Matović B. Synthesis of biomorphic SiC ceramics. in Journal of Optoelectronics and Advanced Materials. 2008;10(12):3447-3449. https://hdl.handle.net/21.15107/rcub_vinar_3603 .
Egelja, Adela, Gulicovski, Jelena J., Devečerski, Aleksandar, Ninic, M., Radosavljević-Mihajlović, Ana S., Matović, Branko, "Synthesis of biomorphic SiC ceramics" in Journal of Optoelectronics and Advanced Materials, 10, no. 12 (2008):3447-3449, https://hdl.handle.net/21.15107/rcub_vinar_3603 .