Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system
Apstrakt
Mixtures of MgO-TiO2 were mechanically activated using high-energy planetary ball mill during 5, 10, 20, 40, 80 and 120 minutes. Sintering process was preformed in air at 1100°-1400°C for 2h. The decrease in powder's particle size was noticed as the time of mechanical activation increased and confirmed by particle size analyzer. XRD analyses were performed in order to acquire the information about phase composition. Different ratio mixtures of MgTiO3 and Mg2TiO4 are present within all sintered samples. The effect of tribophysical activation on microstructure was investigated by scanning electron microscopy. The differential thermal gravimetric analysis has been performed in order to investigate thermal behaviour of the mixtures.
Smeše MgO-TiO2 su mehanički aktivirane u visoko-energetskom planetarnom mlinu tokom 5, 10, 20, 40, 80 i 120 minuta. Fazni sastav je određen rendgenskom difrakcijom. Sa porastom vremena mlevenja, primećeno je smanjenje veličine čestica praha. Takođe, ispitan je i efekat tribofizičke aktivacije na mikrostrukturu praha metodom skenirajuće elektronske mikroskopije. Radi ispitivanja termičkih svojstava praha, urađena je diferencijalna termijska analiza. Proces sinterovanja izveden je u vazduhu u temperaturnom opsegu od 1100°-1400°C tokom 2 sata. U svim sinterovanim uzorcima uočeno je prisustvo dve faze MgTiO3 i Mg2TiO4 ali njihov međusobni odnos koncentracija varira u odnosu na temperaturu sinterovanja.
Ključne reči:
ceramics / mechanochemical processing / sintering / X-ray diffraction / keramika / mehanička aktivacija / sinterovanje / rendgenska difrakcijaIzvor:
Science of Sintering, 2010, 42, 2, 143-151Izdavač:
- Međunarodni Institut za nauku o sinterovanju, Beograd
Finansiranje / projekti:
- Proučavanje međuzavisnosti u trijadi ''sinteza-struktura-svojstva'' za funkcionalne materijala (RS-MESTD-MPN2006-2010-142011)
- Serbian Academy of Sciences and Arts [F-198]
DOI: 10.2298/SOS100518002F
ISSN: 0350-820X
WoS: 000283027300002
Scopus: 2-s2.0-78049426077
Institucija/grupa
Poljoprivredni fakultetTY - JOUR AU - Filipović, Suzana AU - Obradović, N. AU - Pavlović, Vladimir AU - Marković, S. AU - Mitrić, M. AU - Ristić, M.M. PY - 2010 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/2352 AB - Mixtures of MgO-TiO2 were mechanically activated using high-energy planetary ball mill during 5, 10, 20, 40, 80 and 120 minutes. Sintering process was preformed in air at 1100°-1400°C for 2h. The decrease in powder's particle size was noticed as the time of mechanical activation increased and confirmed by particle size analyzer. XRD analyses were performed in order to acquire the information about phase composition. Different ratio mixtures of MgTiO3 and Mg2TiO4 are present within all sintered samples. The effect of tribophysical activation on microstructure was investigated by scanning electron microscopy. The differential thermal gravimetric analysis has been performed in order to investigate thermal behaviour of the mixtures. AB - Smeše MgO-TiO2 su mehanički aktivirane u visoko-energetskom planetarnom mlinu tokom 5, 10, 20, 40, 80 i 120 minuta. Fazni sastav je određen rendgenskom difrakcijom. Sa porastom vremena mlevenja, primećeno je smanjenje veličine čestica praha. Takođe, ispitan je i efekat tribofizičke aktivacije na mikrostrukturu praha metodom skenirajuće elektronske mikroskopije. Radi ispitivanja termičkih svojstava praha, urađena je diferencijalna termijska analiza. Proces sinterovanja izveden je u vazduhu u temperaturnom opsegu od 1100°-1400°C tokom 2 sata. U svim sinterovanim uzorcima uočeno je prisustvo dve faze MgTiO3 i Mg2TiO4 ali njihov međusobni odnos koncentracija varira u odnosu na temperaturu sinterovanja. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system EP - 151 IS - 2 SP - 143 VL - 42 DO - 10.2298/SOS100518002F ER -
@article{ author = "Filipović, Suzana and Obradović, N. and Pavlović, Vladimir and Marković, S. and Mitrić, M. and Ristić, M.M.", year = "2010", abstract = "Mixtures of MgO-TiO2 were mechanically activated using high-energy planetary ball mill during 5, 10, 20, 40, 80 and 120 minutes. Sintering process was preformed in air at 1100°-1400°C for 2h. The decrease in powder's particle size was noticed as the time of mechanical activation increased and confirmed by particle size analyzer. XRD analyses were performed in order to acquire the information about phase composition. Different ratio mixtures of MgTiO3 and Mg2TiO4 are present within all sintered samples. The effect of tribophysical activation on microstructure was investigated by scanning electron microscopy. The differential thermal gravimetric analysis has been performed in order to investigate thermal behaviour of the mixtures., Smeše MgO-TiO2 su mehanički aktivirane u visoko-energetskom planetarnom mlinu tokom 5, 10, 20, 40, 80 i 120 minuta. Fazni sastav je određen rendgenskom difrakcijom. Sa porastom vremena mlevenja, primećeno je smanjenje veličine čestica praha. Takođe, ispitan je i efekat tribofizičke aktivacije na mikrostrukturu praha metodom skenirajuće elektronske mikroskopije. Radi ispitivanja termičkih svojstava praha, urađena je diferencijalna termijska analiza. Proces sinterovanja izveden je u vazduhu u temperaturnom opsegu od 1100°-1400°C tokom 2 sata. U svim sinterovanim uzorcima uočeno je prisustvo dve faze MgTiO3 i Mg2TiO4 ali njihov međusobni odnos koncentracija varira u odnosu na temperaturu sinterovanja.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system", pages = "151-143", number = "2", volume = "42", doi = "10.2298/SOS100518002F" }
Filipović, S., Obradović, N., Pavlović, V., Marković, S., Mitrić, M.,& Ristić, M.M.. (2010). Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 42(2), 143-151. https://doi.org/10.2298/SOS100518002F
Filipović S, Obradović N, Pavlović V, Marković S, Mitrić M, Ristić M. Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system. in Science of Sintering. 2010;42(2):143-151. doi:10.2298/SOS100518002F .
Filipović, Suzana, Obradović, N., Pavlović, Vladimir, Marković, S., Mitrić, M., Ristić, M.M., "Influence of mechanical activation on microstructure and crystal structure of sintered MgO-TiO2 system" in Science of Sintering, 42, no. 2 (2010):143-151, https://doi.org/10.2298/SOS100518002F . .