TY  - JOUR
AU  - Omerasević, Mia
AU  - Lukic, Miodrag
AU  - Savic-Bisercic, Marjetka
AU  - Savić, Andrija
AU  - Matović, Ljiljana
AU  - Baščarević, Zvezdana
AU  - Bucevac, Dusan
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1388
AB  - A promising method for removal of Cs ions from water and their incorporation into stable crystal structure ready for safe and permanent disposal was described. Cs-exchanged X zeolite was hot-pressed at temperature ranging from 800 to 950 degrees C to fabricate dense pollucite ceramics. It was found that the application of external pressure reduced the pollucite formation temperature. The effect of sintering temperature on density, phase composition and mechanical properties was investigated. The highest density of 92.5 %TD and the highest compressive strength of 79 MPa were measured in pollucite hotpressed at 950 degrees C for 3 h. Heterogeneity of samples obtained at 950 degrees C was determined using scanning electron microscopy. The pollucite hot-pressed at 950 degrees C had low linear thermal expansion coefficient of similar to 4.67 x 10(-6) K-1 in the temperature range from 100 to 1000 degrees C.
PB  - Korean Nuclear Soc, Daejeon
T2  - Nuclear Engineering and Technology
T1  - Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient
EP  - 122
IS  - 1
SP  - 115
VL  - 52
DO  - 10.1016/j.net.2019.07.001
ER  - 

@article{
author = "Omerasević, Mia and Lukic, Miodrag and Savic-Bisercic, Marjetka and Savić, Andrija and Matović, Ljiljana and Baščarević, Zvezdana and Bucevac, Dusan",
year = "2020",
abstract = "A promising method for removal of Cs ions from water and their incorporation into stable crystal structure ready for safe and permanent disposal was described. Cs-exchanged X zeolite was hot-pressed at temperature ranging from 800 to 950 degrees C to fabricate dense pollucite ceramics. It was found that the application of external pressure reduced the pollucite formation temperature. The effect of sintering temperature on density, phase composition and mechanical properties was investigated. The highest density of 92.5 %TD and the highest compressive strength of 79 MPa were measured in pollucite hotpressed at 950 degrees C for 3 h. Heterogeneity of samples obtained at 950 degrees C was determined using scanning electron microscopy. The pollucite hot-pressed at 950 degrees C had low linear thermal expansion coefficient of similar to 4.67 x 10(-6) K-1 in the temperature range from 100 to 1000 degrees C.",
publisher = "Korean Nuclear Soc, Daejeon",
journal = "Nuclear Engineering and Technology",
title = "Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient",
pages = "122-115",
number = "1",
volume = "52",
doi = "10.1016/j.net.2019.07.001"
}

Omerasević, M., Lukic, M., Savic-Bisercic, M., Savić, A., Matović, L., Baščarević, Z.,& Bucevac, D.. (2020). Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient. in Nuclear Engineering and Technology
Korean Nuclear Soc, Daejeon., 52(1), 115-122.
https://doi.org/10.1016/j.net.2019.07.001

Omerasević M, Lukic M, Savic-Bisercic M, Savić A, Matović L, Baščarević Z, Bucevac D. Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient. in Nuclear Engineering and Technology. 2020;52(1):115-122.
doi:10.1016/j.net.2019.07.001 .

Omerasević, Mia, Lukic, Miodrag, Savic-Bisercic, Marjetka, Savić, Andrija, Matović, Ljiljana, Baščarević, Zvezdana, Bucevac, Dusan, "Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient" in Nuclear Engineering and Technology, 52, no. 1 (2020):115-122,
https://doi.org/10.1016/j.net.2019.07.001 . .

TY  - JOUR
AU  - Omerasević, Mia
AU  - Ruzic, Jovana
AU  - Nedic-Vasiljević, Bojana
AU  - Baščarević, Zvezdana
AU  - Bucevac, Dusan
AU  - Orlic, Jovana
AU  - Matović, Ljiljana
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1047
AB  - Dense CsAlSi5O12 was successfully obtained by hot pressing of Cs-exchanged clinoptilolite at 900 degrees C. Simultaneous application of high temperature and mechanical pressure allowed formation of CsAlSi5O12 at temperature considerably lower than 1150 degrees C which was the lowest reported temperature of CsAlSi5O12 formation in pressureless sintered Cs-exchanged clinoptilolite. CsAlSi5O12 formation was preceded by complete amorphisation of Cs-exchanged clinoptilolite in temperature range between 700 and 900 degrees C. Bearing in mind that clinoptilolite possesses high affinity for Cs cation it is believed that hot pressing of Cs-exchanged clinoptilolite might be an efficient way to immobilize radioactive Cs by its incorporation into crystal lattice of stable CsAlSi5O12. The samples sintered at 950 degrees C had relative density about 84% of theoretical density and open porosity of only 6% which is expected to result in low Cs leaching rate.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing
EP  - 13504
IS  - 16
SP  - 13500
VL  - 43
DO  - 10.1016/j.ceramint.2017.07.055
ER  - 

@article{
author = "Omerasević, Mia and Ruzic, Jovana and Nedic-Vasiljević, Bojana and Baščarević, Zvezdana and Bucevac, Dusan and Orlic, Jovana and Matović, Ljiljana",
year = "2017",
abstract = "Dense CsAlSi5O12 was successfully obtained by hot pressing of Cs-exchanged clinoptilolite at 900 degrees C. Simultaneous application of high temperature and mechanical pressure allowed formation of CsAlSi5O12 at temperature considerably lower than 1150 degrees C which was the lowest reported temperature of CsAlSi5O12 formation in pressureless sintered Cs-exchanged clinoptilolite. CsAlSi5O12 formation was preceded by complete amorphisation of Cs-exchanged clinoptilolite in temperature range between 700 and 900 degrees C. Bearing in mind that clinoptilolite possesses high affinity for Cs cation it is believed that hot pressing of Cs-exchanged clinoptilolite might be an efficient way to immobilize radioactive Cs by its incorporation into crystal lattice of stable CsAlSi5O12. The samples sintered at 950 degrees C had relative density about 84% of theoretical density and open porosity of only 6% which is expected to result in low Cs leaching rate.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing",
pages = "13504-13500",
number = "16",
volume = "43",
doi = "10.1016/j.ceramint.2017.07.055"
}

Omerasević, M., Ruzic, J., Nedic-Vasiljević, B., Baščarević, Z., Bucevac, D., Orlic, J.,& Matović, L.. (2017). Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing. in Ceramics International
Elsevier Sci Ltd, Oxford., 43(16), 13500-13504.
https://doi.org/10.1016/j.ceramint.2017.07.055

Omerasević M, Ruzic J, Nedic-Vasiljević B, Baščarević Z, Bucevac D, Orlic J, Matović L. Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing. in Ceramics International. 2017;43(16):13500-13504.
doi:10.1016/j.ceramint.2017.07.055 .

Omerasević, Mia, Ruzic, Jovana, Nedic-Vasiljević, Bojana, Baščarević, Zvezdana, Bucevac, Dusan, Orlic, Jovana, Matović, Ljiljana, "Transformation of Cs-exchanged clinoptilolite to CsAlSi5O12 by hot-pressing" in Ceramics International, 43, no. 16 (2017):13500-13504,
https://doi.org/10.1016/j.ceramint.2017.07.055 . .

TY  - JOUR
AU  - Luković, Jelena
AU  - Babić, Biljana M.
AU  - Bucevac, Dusan
AU  - Prekajski, Marija
AU  - Pantic, Jelena
AU  - Baščarević, Zvezdana
AU  - Matović, Branko
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/899
AB  - Fine tungsten carbide (WC) powder was prepared by solid state reaction between tungsten powder (W) and activated carbon cloth as a new carbon (C) source. The effect of temperature and time of heat treatment as well as the effect of C/W ratio on WC phase formation was studied. The results obtained by X-ray powder diffraction (XRPD) show that obtained powder is single WC. Microstructure and morphology was determinate by means of scanning electron microscopy (SEM). Brunauer-Emmett-Teller (BET) method was used for examining specific surface area and texture of obtained powders. It was found that WC powder was successfully synthesized in excess carbon after eight-hour heat treatment at relatively low temperature (1000 degrees C).
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Synthesis and characterization of tungsten carbide fine powders
EP  - 1277
IS  - 1
SP  - 1271
VL  - 41
DO  - 10.1016/j.ceramint.2014.09.057
ER  - 

@article{
author = "Luković, Jelena and Babić, Biljana M. and Bucevac, Dusan and Prekajski, Marija and Pantic, Jelena and Baščarević, Zvezdana and Matović, Branko",
year = "2015",
abstract = "Fine tungsten carbide (WC) powder was prepared by solid state reaction between tungsten powder (W) and activated carbon cloth as a new carbon (C) source. The effect of temperature and time of heat treatment as well as the effect of C/W ratio on WC phase formation was studied. The results obtained by X-ray powder diffraction (XRPD) show that obtained powder is single WC. Microstructure and morphology was determinate by means of scanning electron microscopy (SEM). Brunauer-Emmett-Teller (BET) method was used for examining specific surface area and texture of obtained powders. It was found that WC powder was successfully synthesized in excess carbon after eight-hour heat treatment at relatively low temperature (1000 degrees C).",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Synthesis and characterization of tungsten carbide fine powders",
pages = "1277-1271",
number = "1",
volume = "41",
doi = "10.1016/j.ceramint.2014.09.057"
}

Luković, J., Babić, B. M., Bucevac, D., Prekajski, M., Pantic, J., Baščarević, Z.,& Matović, B.. (2015). Synthesis and characterization of tungsten carbide fine powders. in Ceramics International
Elsevier Sci Ltd, Oxford., 41(1), 1271-1277.
https://doi.org/10.1016/j.ceramint.2014.09.057

Luković J, Babić BM, Bucevac D, Prekajski M, Pantic J, Baščarević Z, Matović B. Synthesis and characterization of tungsten carbide fine powders. in Ceramics International. 2015;41(1):1271-1277.
doi:10.1016/j.ceramint.2014.09.057 .

Luković, Jelena, Babić, Biljana M., Bucevac, Dusan, Prekajski, Marija, Pantic, Jelena, Baščarević, Zvezdana, Matović, Branko, "Synthesis and characterization of tungsten carbide fine powders" in Ceramics International, 41, no. 1 (2015):1271-1277,
https://doi.org/10.1016/j.ceramint.2014.09.057 . .

TY  - JOUR
AU  - Bucevac, Dusan
AU  - Radojković, Aleksandar
AU  - Miljković, Miroslav M
AU  - Babić, Biljana M.
AU  - Matović, Branko
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/699
AB  - Dense Ce0.8Sm0.1Gd0.1O2-delta electrolytes were fabricated by sintering of CeO2 solid solutions which were prepared from metal nitrates and NaOH using self propagating room temperature synthesis (SPRT). Three different routes were employed to obtain CeO2 solid solution powders: (I) hand mixing of reactants, (II) ball milling of reactants and (III) ball milling of Ce0.8Sm0.2O2-delta and Ce0.8Gd0.2O2-delta solid solutions previously prepared by ball milling of corresponding nitrates and NaOH. Density measurements showed that ball milling, which is more convenient than hand mixing, is an effective way to obtain almost full dense samples after presureless sintering at 1550 degrees C for 1 h. These samples had larger grain size and consequently higher conductivity than the samples obtained by hand mixing. The highest conductivity of 2.704 x 10(-2) (Omega cm)(-1) was measured at 700 degrees C in a sample prepared by route II. It was found that reduced grain size in samples obtained by hand mixing leads to a decrease in grain boundary conductivity and therefore decrease in the total conductivity. The results showed that mixing of single doped ceria solid solutions improved densification and inhibited grain growth.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Effect of preparation route on the microstructure and electrical conductivity of co-doped ceria
EP  - 3611
IS  - 4
SP  - 3603
VL  - 39
DO  - 10.1016/j.ceramint.2012.10.188
ER  - 

@article{
author = "Bucevac, Dusan and Radojković, Aleksandar and Miljković, Miroslav M and Babić, Biljana M. and Matović, Branko",
year = "2013",
abstract = "Dense Ce0.8Sm0.1Gd0.1O2-delta electrolytes were fabricated by sintering of CeO2 solid solutions which were prepared from metal nitrates and NaOH using self propagating room temperature synthesis (SPRT). Three different routes were employed to obtain CeO2 solid solution powders: (I) hand mixing of reactants, (II) ball milling of reactants and (III) ball milling of Ce0.8Sm0.2O2-delta and Ce0.8Gd0.2O2-delta solid solutions previously prepared by ball milling of corresponding nitrates and NaOH. Density measurements showed that ball milling, which is more convenient than hand mixing, is an effective way to obtain almost full dense samples after presureless sintering at 1550 degrees C for 1 h. These samples had larger grain size and consequently higher conductivity than the samples obtained by hand mixing. The highest conductivity of 2.704 x 10(-2) (Omega cm)(-1) was measured at 700 degrees C in a sample prepared by route II. It was found that reduced grain size in samples obtained by hand mixing leads to a decrease in grain boundary conductivity and therefore decrease in the total conductivity. The results showed that mixing of single doped ceria solid solutions improved densification and inhibited grain growth.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Effect of preparation route on the microstructure and electrical conductivity of co-doped ceria",
pages = "3611-3603",
number = "4",
volume = "39",
doi = "10.1016/j.ceramint.2012.10.188"
}

Bucevac, D., Radojković, A., Miljković, M. M., Babić, B. M.,& Matović, B.. (2013). Effect of preparation route on the microstructure and electrical conductivity of co-doped ceria. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(4), 3603-3611.
https://doi.org/10.1016/j.ceramint.2012.10.188

Bucevac D, Radojković A, Miljković MM, Babić BM, Matović B. Effect of preparation route on the microstructure and electrical conductivity of co-doped ceria. in Ceramics International. 2013;39(4):3603-3611.
doi:10.1016/j.ceramint.2012.10.188 .

Bucevac, Dusan, Radojković, Aleksandar, Miljković, Miroslav M, Babić, Biljana M., Matović, Branko, "Effect of preparation route on the microstructure and electrical conductivity of co-doped ceria" in Ceramics International, 39, no. 4 (2013):3603-3611,
https://doi.org/10.1016/j.ceramint.2012.10.188 . .