Porous ceramic monoliths based on diatomite
Само за регистроване кориснике
2015
Аутори
Šaponjić, AleksandraStanković, Miroslav
Majstorovic, Jelena
Matović, Branko
Ilić, Svetlana
Egelja, Adela
Kokunešoski, Maja
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Porous silica ceramics were obtained at low forming pressure and low sintering temperature by using diatomaceous earth as a silica source and boric acid as an inexpensive additive. The starting raw material, diatomite from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid up to 2 wt%. Powder was compacted by using different pressures of 40, 60 and 80 MPa. The pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity in the range of 60-70% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 2 mu m in the samples sintered at 1150 and 1300 degrees C. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scaning electron microscopy (SEM) and mercury porosimetry measurements were employed to chara...cterize the phases, functional groups, microstructure and pore size distribution of the obtained samples. In addition, measurements of densities and open porosities by immersion technique, according to Archimedes principle, were used. The relations between mechanical properties (Young modulus, Poisson ratio, and compressive strength) versus content of boric acid in the investigated samples were studied and disscussed.
Кључне речи:
Sintering / Porosity / Diatomite / Boric acidИзвор:
Ceramics International, 2015, 41, 8, 9745-9752Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
DOI: 10.1016/j.ceramint.2015.04.046
ISSN: 0272-8842
WoS: 000356549100071
Scopus: 2-s2.0-84930930019
Институција/група
IHTMTY - JOUR AU - Šaponjić, Aleksandra AU - Stanković, Miroslav AU - Majstorovic, Jelena AU - Matović, Branko AU - Ilić, Svetlana AU - Egelja, Adela AU - Kokunešoski, Maja PY - 2015 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1654 AB - Porous silica ceramics were obtained at low forming pressure and low sintering temperature by using diatomaceous earth as a silica source and boric acid as an inexpensive additive. The starting raw material, diatomite from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid up to 2 wt%. Powder was compacted by using different pressures of 40, 60 and 80 MPa. The pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity in the range of 60-70% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 2 mu m in the samples sintered at 1150 and 1300 degrees C. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scaning electron microscopy (SEM) and mercury porosimetry measurements were employed to characterize the phases, functional groups, microstructure and pore size distribution of the obtained samples. In addition, measurements of densities and open porosities by immersion technique, according to Archimedes principle, were used. The relations between mechanical properties (Young modulus, Poisson ratio, and compressive strength) versus content of boric acid in the investigated samples were studied and disscussed. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Porous ceramic monoliths based on diatomite VL - 41 IS - 8 SP - 9745 EP - 9752 DO - 10.1016/j.ceramint.2015.04.046 ER -
@article{ author = "Šaponjić, Aleksandra and Stanković, Miroslav and Majstorovic, Jelena and Matović, Branko and Ilić, Svetlana and Egelja, Adela and Kokunešoski, Maja", year = "2015", abstract = "Porous silica ceramics were obtained at low forming pressure and low sintering temperature by using diatomaceous earth as a silica source and boric acid as an inexpensive additive. The starting raw material, diatomite from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid up to 2 wt%. Powder was compacted by using different pressures of 40, 60 and 80 MPa. The pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity in the range of 60-70% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 2 mu m in the samples sintered at 1150 and 1300 degrees C. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scaning electron microscopy (SEM) and mercury porosimetry measurements were employed to characterize the phases, functional groups, microstructure and pore size distribution of the obtained samples. In addition, measurements of densities and open porosities by immersion technique, according to Archimedes principle, were used. The relations between mechanical properties (Young modulus, Poisson ratio, and compressive strength) versus content of boric acid in the investigated samples were studied and disscussed.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Porous ceramic monoliths based on diatomite", volume = "41", number = "8", pages = "9745-9752", doi = "10.1016/j.ceramint.2015.04.046" }
Šaponjić, A., Stanković, M., Majstorovic, J., Matović, B., Ilić, S., Egelja, A.,& Kokunešoski, M.. (2015). Porous ceramic monoliths based on diatomite. in Ceramics International Elsevier Sci Ltd, Oxford., 41(8), 9745-9752. https://doi.org/10.1016/j.ceramint.2015.04.046
Šaponjić A, Stanković M, Majstorovic J, Matović B, Ilić S, Egelja A, Kokunešoski M. Porous ceramic monoliths based on diatomite. in Ceramics International. 2015;41(8):9745-9752. doi:10.1016/j.ceramint.2015.04.046 .
Šaponjić, Aleksandra, Stanković, Miroslav, Majstorovic, Jelena, Matović, Branko, Ilić, Svetlana, Egelja, Adela, Kokunešoski, Maja, "Porous ceramic monoliths based on diatomite" in Ceramics International, 41, no. 8 (2015):9745-9752, https://doi.org/10.1016/j.ceramint.2015.04.046 . .