Influence of prolonged sintering time on density and electrical properties of isothermally sintered cordierite-based ceramics
Abstract
Mehanička aktivacija je brza i jeftina procedura koja se obično koristi za pripremanje uzoraka pre procesa sinterovanja. Kordijerit, stehiometrijska mešavina tri različita oksida (2MgO⋅2Al2O3⋅5SiO2) je veoma atraktivan, i široko korišćen visokotemperaturni keramički materijal. Početna smeša sa 5.00 masenih % TiO2 je mehanički aktivirana u visokoenergetskom mlinu sa kuglicama u vremenskom intervalu od 10- 80 minuta. Pre procesa sinterovanja uzorci su ispresovani pod pritiskom od 2t/cm2, bazirano na našem pređašnjem istraživanju. Uzorci su sinterovani na temperaturi od 1350°C u periodu od 2 i 4 sata u atmosferi vazduha. Difrakcijom H zraka je ustanovljena faza neaktiviranih i uzoraka aktiviranih 80 minuta, sinterovanih 2 i 4 sata, respektivno. Skenirajućom elektronskom mikroskopijom je analizirana mikrostruktura oba sinterovana uzorka. Mikroskopom atomskih sila smo analizirali površinu oba uzorka. Ovaj rad ispituje uticaj produženog vremena sinterovanja na gustinu sinterovanih uzoraka, k...ao i električne osobine.
Mechanical activation is a commonly used and relatively fast and inexpensive procedure for sample preparation before the sintering process. Cordierite, a stoichiometric mixture of three different oxides (2MgO⋅2Al2O3⋅5SiO2) is a very attractive, widely used high-temperature ceramic material. The mechanical activation of the starting mixtures with 5.00 mass% TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering process was 2t/cm2, based on our recent investigation. The sintering process was performed at 1350°C for 2h and 4h in air atmosphere. X-ray diffraction was used to analyze the phase composition of non-activated and 80 min activated samples, sintered for 2 and 4h, respectively. Scanning electron microscopy was performed to analyze the microstructure of both compacted and sintered samples. Atomic force microscope was used to investigate the surface of the sintered samples. This paper investigates the influence of prolong...ed sintering time on the densities of the sintered samples, along with electrical properties.
Keywords:
XRD / SEM / mehanička aktivacija / kordijerit / gustina / elektične osobine / AFM / XRD / SEM / mechanical activation / electrical properties / density / cordierite / AFMSource:
Science of Sintering, 2013, 45, 2, 157-164Publisher:
- Međunarodni Institut za nauku o sinterovanju, Beograd
Funding / projects:
- Directed synthesis, structure and properties of multifunctional materials (RS-MESTD-Basic Research (BR or ON)-172057)
DOI: 10.2298/SOS1302157P
ISSN: 0350-820X
WoS: 000323550700004
Scopus: 2-s2.0-84881523853
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Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Peleš, A. AU - Đorđević, Nataša AU - Obradović, Nina AU - Tadić, N. AU - Pavlović, Vladimir PY - 2013 UR - https://ritnms.itnms.ac.rs/handle/123456789/258 AB - Mehanička aktivacija je brza i jeftina procedura koja se obično koristi za pripremanje uzoraka pre procesa sinterovanja. Kordijerit, stehiometrijska mešavina tri različita oksida (2MgO⋅2Al2O3⋅5SiO2) je veoma atraktivan, i široko korišćen visokotemperaturni keramički materijal. Početna smeša sa 5.00 masenih % TiO2 je mehanički aktivirana u visokoenergetskom mlinu sa kuglicama u vremenskom intervalu od 10- 80 minuta. Pre procesa sinterovanja uzorci su ispresovani pod pritiskom od 2t/cm2, bazirano na našem pređašnjem istraživanju. Uzorci su sinterovani na temperaturi od 1350°C u periodu od 2 i 4 sata u atmosferi vazduha. Difrakcijom H zraka je ustanovljena faza neaktiviranih i uzoraka aktiviranih 80 minuta, sinterovanih 2 i 4 sata, respektivno. Skenirajućom elektronskom mikroskopijom je analizirana mikrostruktura oba sinterovana uzorka. Mikroskopom atomskih sila smo analizirali površinu oba uzorka. Ovaj rad ispituje uticaj produženog vremena sinterovanja na gustinu sinterovanih uzoraka, kao i električne osobine. AB - Mechanical activation is a commonly used and relatively fast and inexpensive procedure for sample preparation before the sintering process. Cordierite, a stoichiometric mixture of three different oxides (2MgO⋅2Al2O3⋅5SiO2) is a very attractive, widely used high-temperature ceramic material. The mechanical activation of the starting mixtures with 5.00 mass% TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering process was 2t/cm2, based on our recent investigation. The sintering process was performed at 1350°C for 2h and 4h in air atmosphere. X-ray diffraction was used to analyze the phase composition of non-activated and 80 min activated samples, sintered for 2 and 4h, respectively. Scanning electron microscopy was performed to analyze the microstructure of both compacted and sintered samples. Atomic force microscope was used to investigate the surface of the sintered samples. This paper investigates the influence of prolonged sintering time on the densities of the sintered samples, along with electrical properties. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Influence of prolonged sintering time on density and electrical properties of isothermally sintered cordierite-based ceramics EP - 164 IS - 2 SP - 157 VL - 45 DO - 10.2298/SOS1302157P UR - https://hdl.handle.net/21.15107/rcub_dais_188 UR - conv_662 ER -
@article{ author = "Peleš, A. and Đorđević, Nataša and Obradović, Nina and Tadić, N. and Pavlović, Vladimir", year = "2013", abstract = "Mehanička aktivacija je brza i jeftina procedura koja se obično koristi za pripremanje uzoraka pre procesa sinterovanja. Kordijerit, stehiometrijska mešavina tri različita oksida (2MgO⋅2Al2O3⋅5SiO2) je veoma atraktivan, i široko korišćen visokotemperaturni keramički materijal. Početna smeša sa 5.00 masenih % TiO2 je mehanički aktivirana u visokoenergetskom mlinu sa kuglicama u vremenskom intervalu od 10- 80 minuta. Pre procesa sinterovanja uzorci su ispresovani pod pritiskom od 2t/cm2, bazirano na našem pređašnjem istraživanju. Uzorci su sinterovani na temperaturi od 1350°C u periodu od 2 i 4 sata u atmosferi vazduha. Difrakcijom H zraka je ustanovljena faza neaktiviranih i uzoraka aktiviranih 80 minuta, sinterovanih 2 i 4 sata, respektivno. Skenirajućom elektronskom mikroskopijom je analizirana mikrostruktura oba sinterovana uzorka. Mikroskopom atomskih sila smo analizirali površinu oba uzorka. Ovaj rad ispituje uticaj produženog vremena sinterovanja na gustinu sinterovanih uzoraka, kao i električne osobine., Mechanical activation is a commonly used and relatively fast and inexpensive procedure for sample preparation before the sintering process. Cordierite, a stoichiometric mixture of three different oxides (2MgO⋅2Al2O3⋅5SiO2) is a very attractive, widely used high-temperature ceramic material. The mechanical activation of the starting mixtures with 5.00 mass% TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering process was 2t/cm2, based on our recent investigation. The sintering process was performed at 1350°C for 2h and 4h in air atmosphere. X-ray diffraction was used to analyze the phase composition of non-activated and 80 min activated samples, sintered for 2 and 4h, respectively. Scanning electron microscopy was performed to analyze the microstructure of both compacted and sintered samples. Atomic force microscope was used to investigate the surface of the sintered samples. This paper investigates the influence of prolonged sintering time on the densities of the sintered samples, along with electrical properties.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Influence of prolonged sintering time on density and electrical properties of isothermally sintered cordierite-based ceramics", pages = "164-157", number = "2", volume = "45", doi = "10.2298/SOS1302157P", url = "https://hdl.handle.net/21.15107/rcub_dais_188, conv_662" }
Peleš, A., Đorđević, N., Obradović, N., Tadić, N.,& Pavlović, V.. (2013). Influence of prolonged sintering time on density and electrical properties of isothermally sintered cordierite-based ceramics. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 45(2), 157-164. https://doi.org/10.2298/SOS1302157P https://hdl.handle.net/21.15107/rcub_dais_188
Peleš A, Đorđević N, Obradović N, Tadić N, Pavlović V. Influence of prolonged sintering time on density and electrical properties of isothermally sintered cordierite-based ceramics. in Science of Sintering. 2013;45(2):157-164. doi:10.2298/SOS1302157P https://hdl.handle.net/21.15107/rcub_dais_188 .
Peleš, A., Đorđević, Nataša, Obradović, Nina, Tadić, N., Pavlović, Vladimir, "Influence of prolonged sintering time on density and electrical properties of isothermally sintered cordierite-based ceramics" in Science of Sintering, 45, no. 2 (2013):157-164, https://doi.org/10.2298/SOS1302157P ., https://hdl.handle.net/21.15107/rcub_dais_188 .