Effect of boric acid on the porosity of clay and diatomite monoliths
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2016
Authors
Kokunešoski, Maja
Šaponjić, Aleksandra

Stanković, Miroslav

Majstorovic, Jelena
Egelja, Adela

Ilić, Svetlana

Matović, Branko

Article (Published version)

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Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.
Keywords:
Sintering / Porosity / Clays / Diatomite / Boric acidSource:
Ceramics International, 2016, 42, 5, 6383-6390Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
DOI: 10.1016/j.ceramint.2016.01.034
ISSN: 0272-8842
WoS: 000370884500094
Scopus: 2-s2.0-84955316901
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IHTMTY - JOUR AU - Kokunešoski, Maja AU - Šaponjić, Aleksandra AU - Stanković, Miroslav AU - Majstorovic, Jelena AU - Egelja, Adela AU - Ilić, Svetlana AU - Matović, Branko PY - 2016 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1961 AB - Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Effect of boric acid on the porosity of clay and diatomite monoliths VL - 42 IS - 5 SP - 6383 EP - 6390 DO - 10.1016/j.ceramint.2016.01.034 ER -
@article{ author = "Kokunešoski, Maja and Šaponjić, Aleksandra and Stanković, Miroslav and Majstorovic, Jelena and Egelja, Adela and Ilić, Svetlana and Matović, Branko", year = "2016", abstract = "Porous silica ceramics were obtained at low forming pressure (40-80 MPa) and low sintering temperature (850-1300 degrees C) for 4 h in air. Boric acid was used as a low-cost additive, in the amount of 2 wt%. Relatively high porosities of nearly 40% and 65% are obtained for the samples of clay and diatomite pressed at 40 MPa, and sintered at 1000 degrees C, respectively. The samples sintered at 1150 degrees C and 1300 degrees C have the average pore size diameters in the range of macroporous for clay 0.2-10 m and for diatomite 0.2-5 m. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and mercury porosimetry measurements were employed to characterize of the obtained samples. Measurements of densities and open porosities by immersion technique were used, according to the Archimedes principle. The relations between mechanical characteristics of the samples formed by using different pressures and sintered at different temperature, were discussed.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Effect of boric acid on the porosity of clay and diatomite monoliths", volume = "42", number = "5", pages = "6383-6390", doi = "10.1016/j.ceramint.2016.01.034" }
Kokunešoski, M., Šaponjić, A., Stanković, M., Majstorovic, J., Egelja, A., Ilić, S.,& Matović, B.. (2016). Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International Elsevier Sci Ltd, Oxford., 42(5), 6383-6390. https://doi.org/10.1016/j.ceramint.2016.01.034
Kokunešoski M, Šaponjić A, Stanković M, Majstorovic J, Egelja A, Ilić S, Matović B. Effect of boric acid on the porosity of clay and diatomite monoliths. in Ceramics International. 2016;42(5):6383-6390. doi:10.1016/j.ceramint.2016.01.034 .
Kokunešoski, Maja, Šaponjić, Aleksandra, Stanković, Miroslav, Majstorovic, Jelena, Egelja, Adela, Ilić, Svetlana, Matović, Branko, "Effect of boric acid on the porosity of clay and diatomite monoliths" in Ceramics International, 42, no. 5 (2016):6383-6390, https://doi.org/10.1016/j.ceramint.2016.01.034 . .