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.
TY - 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 . .
