TY  - JOUR
AU  - Omerašević, Mia
AU  - Krsmanović, Miomir
AU  - Radovanović, Željko
AU  - Bučevac, Dušan
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12244
AB  - Anorthite ceramics (CaAl2Si2O8) was obtained by slip casting of water suspension of kaolin (Al2O3·2SiO2·2H2O) and CaCO3 as a source of CaO. A relative density of 87 % of the theoretical density was achieved after a 3-h-long sintering of green samples at 1200 °C. It was found that slip casting allows the fabrication of anorthite with relatively small pores (<8 μm) which was beneficial for achieving a high fracture strength of 129 MPa and good thermal shock resistance. For a quantitative measurement of thermal shock resistance, a critical temperature interval (ΔTc) was determined by a reduction in the mean fracture strength of at least 30 %. The experimentally determined ΔTc of 300 °C was higher than the value calculated by the equation assuming that the thermal stress created during quenching causes the fracture. It was found that the discrepancy between experimental and calculated values of ΔTc could be explained by an introduction of cracks of various sizes by indentation method and careful observation of crack growth initiation after quenching from various temperatures. It is believed that the reason for the discrepancy lies in the different nature of stress that was used in the theoretical calculation and the stress that acts during sample quenching.
T2  - Ceramics International
T1  - Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting
VL  - 50
IS  - 3 Part B
SP  - 5787
EP  - 5795
DO  - 10.1016/j.ceramint.2023.11.381
ER  - 

@article{
author = "Omerašević, Mia and Krsmanović, Miomir and Radovanović, Željko and Bučevac, Dušan",
year = "2024",
abstract = "Anorthite ceramics (CaAl2Si2O8) was obtained by slip casting of water suspension of kaolin (Al2O3·2SiO2·2H2O) and CaCO3 as a source of CaO. A relative density of 87 % of the theoretical density was achieved after a 3-h-long sintering of green samples at 1200 °C. It was found that slip casting allows the fabrication of anorthite with relatively small pores (<8 μm) which was beneficial for achieving a high fracture strength of 129 MPa and good thermal shock resistance. For a quantitative measurement of thermal shock resistance, a critical temperature interval (ΔTc) was determined by a reduction in the mean fracture strength of at least 30 %. The experimentally determined ΔTc of 300 °C was higher than the value calculated by the equation assuming that the thermal stress created during quenching causes the fracture. It was found that the discrepancy between experimental and calculated values of ΔTc could be explained by an introduction of cracks of various sizes by indentation method and careful observation of crack growth initiation after quenching from various temperatures. It is believed that the reason for the discrepancy lies in the different nature of stress that was used in the theoretical calculation and the stress that acts during sample quenching.",
journal = "Ceramics International",
title = "Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting",
volume = "50",
number = "3 Part B",
pages = "5787-5795",
doi = "10.1016/j.ceramint.2023.11.381"
}

Omerašević, M., Krsmanović, M., Radovanović, Ž.,& Bučevac, D.. (2024). Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting. in Ceramics International, 50(3 Part B), 5787-5795.
https://doi.org/10.1016/j.ceramint.2023.11.381

Omerašević M, Krsmanović M, Radovanović Ž, Bučevac D. Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting. in Ceramics International. 2024;50(3 Part B):5787-5795.
doi:10.1016/j.ceramint.2023.11.381 .

Omerašević, Mia, Krsmanović, Miomir, Radovanović, Željko, Bučevac, Dušan, "Mechanical properties and thermal shock resistance of anorthite ceramics obtained by slip casting" in Ceramics International, 50, no. 3 Part B (2024):5787-5795,
https://doi.org/10.1016/j.ceramint.2023.11.381 . .

TY  - CONF
AU  - Omerašević, Mia
AU  - Krsmanović, Miomir
AU  - Pavkov, Vladimir
AU  - Radovanović, Željko
AU  - Egerić, Marija
AU  - Nenadović, Snežana
AU  - Bučevac, Dušan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11627
AB  - There is a global tendency to reduce the consumption of energy required for heating as well
as cooling buildings. Therefore, thermal insulation technology becoming important in
preventing both, the gain and loss of heat through the building envelope. This work aims to
evaluate the feasibility of using inexpensive raw materials such as kaolin and waste material
such as seashells and banana peel for fabrication of the sustainable anorthite-based porous
ceramics for thermal insulation. Kaolin was used as a source of Al2O3 and SiO2, seashells as a
source of CaO whereas banana peel was used as a pore former. The phase composition, bulk
density, open porosity, compressive strength, microstructure, and thermal conductivity of the
ceramic samples, were analyzed. The obtained results showed that the variation of pore former (banana peel) content and sintering temperature was an effective way to control the
thermo-mechanical properties of the obtained anorthite ceramics. Samples with open porosity
(1.4 – 45%), compressive strength (>15 MPa), bulk density (1.87-2.62 g/cm3
), and thermal
conductivity (0.097-3.67W/mK) were obtained after sintering of samples with different
percent of banana peel at 1100–1200 ◦C. It suggests that the obtained porous ceramics can be
used for cost-effective thermal insulation of buildings.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings
SP  - 61
EP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11627
ER  - 

@conference{
author = "Omerašević, Mia and Krsmanović, Miomir and Pavkov, Vladimir and Radovanović, Željko and Egerić, Marija and Nenadović, Snežana and Bučevac, Dušan",
year = "2023",
abstract = "There is a global tendency to reduce the consumption of energy required for heating as well
as cooling buildings. Therefore, thermal insulation technology becoming important in
preventing both, the gain and loss of heat through the building envelope. This work aims to
evaluate the feasibility of using inexpensive raw materials such as kaolin and waste material
such as seashells and banana peel for fabrication of the sustainable anorthite-based porous
ceramics for thermal insulation. Kaolin was used as a source of Al2O3 and SiO2, seashells as a
source of CaO whereas banana peel was used as a pore former. The phase composition, bulk
density, open porosity, compressive strength, microstructure, and thermal conductivity of the
ceramic samples, were analyzed. The obtained results showed that the variation of pore former (banana peel) content and sintering temperature was an effective way to control the
thermo-mechanical properties of the obtained anorthite ceramics. Samples with open porosity
(1.4 – 45%), compressive strength (>15 MPa), bulk density (1.87-2.62 g/cm3
), and thermal
conductivity (0.097-3.67W/mK) were obtained after sintering of samples with different
percent of banana peel at 1100–1200 ◦C. It suggests that the obtained porous ceramics can be
used for cost-effective thermal insulation of buildings.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings",
pages = "61-62",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11627"
}

Omerašević, M., Krsmanović, M., Pavkov, V., Radovanović, Ž., Egerić, M., Nenadović, S.,& Bučevac, D.. (2023). Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 61-62.
https://hdl.handle.net/21.15107/rcub_vinar_11627

Omerašević M, Krsmanović M, Pavkov V, Radovanović Ž, Egerić M, Nenadović S, Bučevac D. Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:61-62.
https://hdl.handle.net/21.15107/rcub_vinar_11627 .

Omerašević, Mia, Krsmanović, Miomir, Pavkov, Vladimir, Radovanović, Željko, Egerić, Marija, Nenadović, Snežana, Bučevac, Dušan, "Fabrication of porous anorthite-based ceramics using solid wastes for costeffective thermal insulation of buildings" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):61-62,
https://hdl.handle.net/21.15107/rcub_vinar_11627 .

TY  - CONF
AU  - Krsmanović, Miomir
AU  - Popović, Aleksandar
AU  - Radovanović, Željko
AU  - Marković, Smilja
AU  - Omerašević, Mia
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12309
AB  - Environmental pollution is increasing day by day due to industrial activities. Heavy metals are pollutants of special concern due to their toxicity, persistence, and bioaccumulation in nature. Nickel is a heavy metal that is mostly used in industries because of its anticorrosion behavior. As a consequence, nickel ions are present in the wastewater from mining, electroplating, battery manufacturing and metal finishing industries. Nickel ions are nonbiodegradable, and as such, they are present in surface water. Their high concentrations can have a dangerous impact on human health and aquatic life. In this work, a promising method for the removal of Ni ions from wastewater and their incorporation into a stable crystal structure was described. Ni-exchanged form of LTA zeolite was prepared by the standard procedure of ion exchange. After the ion exchange, powder samples were heated at temperatures of 900 to 1300 ºC in order to obtain a stable crystal structure of Ni-spinel, NiAl2O4. XRF analysis was used to study ion exchange efficiency. Characterization of raw as well as thermally treated powder samples of Ni-exchanged LTA zeolite was conducted by XRPD, DTA/TG, FT-IR and SEM analysis
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater
SP  - 29
EP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12309
ER  - 

@conference{
author = "Krsmanović, Miomir and Popović, Aleksandar and Radovanović, Željko and Marković, Smilja and Omerašević, Mia",
year = "2023",
abstract = "Environmental pollution is increasing day by day due to industrial activities. Heavy metals are pollutants of special concern due to their toxicity, persistence, and bioaccumulation in nature. Nickel is a heavy metal that is mostly used in industries because of its anticorrosion behavior. As a consequence, nickel ions are present in the wastewater from mining, electroplating, battery manufacturing and metal finishing industries. Nickel ions are nonbiodegradable, and as such, they are present in surface water. Their high concentrations can have a dangerous impact on human health and aquatic life. In this work, a promising method for the removal of Ni ions from wastewater and their incorporation into a stable crystal structure was described. Ni-exchanged form of LTA zeolite was prepared by the standard procedure of ion exchange. After the ion exchange, powder samples were heated at temperatures of 900 to 1300 ºC in order to obtain a stable crystal structure of Ni-spinel, NiAl2O4. XRF analysis was used to study ion exchange efficiency. Characterization of raw as well as thermally treated powder samples of Ni-exchanged LTA zeolite was conducted by XRPD, DTA/TG, FT-IR and SEM analysis",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater",
pages = "29-29",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12309"
}

Krsmanović, M., Popović, A., Radovanović, Ž., Marković, S.,& Omerašević, M.. (2023). Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 29-29.
https://hdl.handle.net/21.15107/rcub_vinar_12309

Krsmanović M, Popović A, Radovanović Ž, Marković S, Omerašević M. Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:29-29.
https://hdl.handle.net/21.15107/rcub_vinar_12309 .

Krsmanović, Miomir, Popović, Aleksandar, Radovanović, Željko, Marković, Smilja, Omerašević, Mia, "Immobilization of nickel ions into stable crystal structures as a promising way for their removal from wastewater" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):29-29,
https://hdl.handle.net/21.15107/rcub_vinar_12309 .